Hcg levels during pregnancy with twins

The hook effect may occur when levels of hCG reach 500,000 milli-international units per milliliter. Certain medical conditions, such as cancer and pregnancy-related diseases, may cause high ...

An hCG level of less than 5 mIU/mL is considered negative for pregnancy, and anything above 25 mIU/mL is considered positive for pregnancy. An hCG level between 6 and 24 mIU/mL is considered a grey area, and you’ll likely need to be retested to see if your levels rise to confirm a pregnancy. The hCG hormone is measured in milli-international ... The hook effect can occur when hCG levels are above 500,000 mIU/mL. 3 The hook effect in pregnancy tests is rare. 4 While hCG levels can vary greatly from person to person, in a typical …At 8 weeks pregnant with twins, you've likely seen (or will soon see) your babies on an ultrasound. Pregnancy symptoms at this time include morning sickness, bloating, food cravings or distaste, fatigue, breast changes, frequent urination, and increased vaginal discharge. Your twin babies will soon be considered fetuses and are …A partial molar pregnancy is a variation of a molar pregnancy, an abnormal pregnancy in which an embryo (the fertilized egg) either developed incompletely or doesn’t develop at all. Instead, a cluster of grape-like cysts (known as a hydatidiform mole) develops in the uterus. The rest of my pregnancy was rocky. Besides constant nausea, …Urine pregnancy tests can detect hCG levels when they reach 20 to 50 milli-international units/mL, while blood tests are positive at 5 milli-international units/mL, Lamppa says. That typically translates to getting a positive urine pregnancy test around the time your period is due.The difference between a clone and a twin isn't great genetically. Find out why a clone and a twin are so similar and which would be your best match. Advertisement Is there a limit...A little more than half of twin pregnancies end in preterm delivery (before 37 weeks). While 40 weeks is the full gestation period of the average pregnancy, most twin pregnancies are delivered at approximately 36 weeks (range 32-38 weeks depending on the type of twin pregnancy). John Hopkins Medicine.

13–16 weeks from LMP. 13,300–254,00 mIU/mL. 17–24 weeks from LMP. 4,060–165,400 mIU/mL. 25–40 weeks from LMP. 3,640–117,000 mIU/mL. Because every pregnancy is different, it's important ...May 12, 2015 · In 8195 pregnant women, total serum hCG levels were determined from blood samples drawn from the women at inclusion in the study (median 14.4 weeks; 95 % range 10.1–26.2). Women with a late termination of pregnancy (TOP) were excluded from the study population (n = 2). For population-based RR, and total hCG determinant analyses, women with ... Nov 12, 2020 ... In fresh embryo transfer cycles, the thresholds of serum β-hCG levels to predict clinical pregnancy and live births were 111–213 IU/L and 160– ...In 8195 pregnant women, total serum hCG levels were determined from blood samples drawn from the women at inclusion in the study (median 14.4 weeks; 95 % range 10.1–26.2). Women with a late termination of pregnancy (TOP) were excluded from the study population (n = 2). For population-based RR, and total hCG determinant …Since many mamas do report higher hCG levels with twin pregnancies, other early signs of pregnancy are exacerbated in a twin pregnancy. Here, some common complaints in mamas carrying multiples: 2. Extreme morning sickness. Because of the bigger increase in several pregnancy hormones, morning sickness can be especially …Mar 8, 2024 · hCG levels after week 10. "This means that at the beginning of pregnancy, your hCG number (measured in mIU/ml or IU/l ) might be 2. It'll then move to 4, 8, and 16, and then it really picks up ... Symptoms of Being 4 Weeks Pregnant With Twins. Learn More. ... During pregnancy, there is a rise in the human chorionic gonadoptropin (hCG) level. In a normal pregnancy, hCG levels double every two to three days; a deviation from the norm usually indicates an abnormal pregnancy. A home pregnancy test might still register positive …

Carrying multiples (twins, triplets, etc.) can affect the rate of hCG rise, as well as how far along you are. ... Reference ranges and determinants of total hCG levels during pregnancy: The ... An hCG level of less than 5 mIU/mL is considered negative for pregnancy, and anything above 25 mIU/mL is considered positive for pregnancy. An hCG level between 6 and 24 mIU/mL is considered a grey area, and you’ll likely need to be retested to see if your levels rise to confirm a pregnancy. The hCG hormone is measured in milli-international ... Nov 12, 2020 ... In fresh embryo transfer cycles, the thresholds of serum β-hCG levels to predict clinical pregnancy and live births were 111–213 IU/L and 160– ...For a single baby, the hCG level varies from 70 to 750 mIU/ml (i.e., milli international units per millilitre, which is a unit to measure hormones). High hCG levels can be found for twins during the early stages for pregnancy. The normal hCG levels for twins is 30% to 50% higher than in single pregnancy- somewhere around 200 to 1750 mIU/ml.The sensitivity of most hCG assays are set to the normal pregnancy hCG range at 8 to 11 weeks of about 25,000 to 250,000 mIU/mL. If a diagnosis of gestational trophoblastic disease associated with a higher hCG level is suspected, this should be communicated to the laboratory so that the hCG assay will be performed on a diluted …In a typical pregnancy, hCG levels double every 48 to 72 hours. This period increases to about every 96 hours as you get further along. HCG levels peak during the first eight to 11 weeks of ...

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Fraternal – nonidentical – twins develop from two separate fertilized eggs. By 6 weeks, their hearts are beating, and at 8 weeks all of their major organs start developing.The twins' faces take shape, with closed eyelids, at 12 weeks, and at 16 weeks their sex organs are apparent.At 24 weeks they begin to store fat and are working on …In this Article. What Is HCG (Human Chorionic Gonadotropin)? When Is HCG Produced? How Do HCG Pregnancy Tests Work? What Do Low HCG Levels Indicate? …The average progesterone level is over 10 for un-medicated cycles and over 15 with medication. 9-47 ng/ml during the First Trimester. 17-146 ng/ml in the Second Trimester. 49-300 ng/ml in the Third Trimester. Note, however, that there are different averages for progesterone levels and the values above are merely guidelines.In 8195 pregnant women, total serum hCG levels were determined from blood samples drawn from the women at inclusion in the study (median 14.4 weeks; 95 % range 10.1–26.2). Women with a late termination of pregnancy (TOP) were excluded from the study population (n = 2). For population-based RR, and total hCG determinant …Progesterone levels also can have quite a variance at this stage of pregnancy. They can range from 9-47ng/ml in the first trimester, with an average of 12-20 ng/ml in the first 5-6 weeks of pregnancy. With both hCG levels and progesterone levels, it is not the single value that can predict a healthy pregnancy outcome.

At five weeks pregnant, hcg levels with twins should be between 10,000 and 50,000 mIU/ml. This is because the placenta has started to form and is producing hcg. It’s important to note that hcg levels can vary widely between pregnancies and may not be an accurate indicator of the health of a pregnancy on their own. Twin HCG Levels at 5 Weeks ...Jan 25, 2023 · If you are carrying twins or multiples, your hCG levels will also increase rapidly during the first few weeks of pregnancy and peak around week 10 – just like in a singleton pregnancy. However, there is a chance that your overall hCG levels will be up to 50% higher than what is considered the “normal” range for a single pregnancy. For a single baby, HCG level varies from 70 to 750 mIU/mL. When it comes to twins, the normal HCG levels during the early stages of pregnancy is about 30% to 50% higher than in a single pregnancy. This is somewhere around 200 to 1750 mIU/ML. When a woman is pregnant with multiples, HCG levels will be particularly high because …HCG production starts right after implantation, but the levels are very low at first. They increase rapidly in the first few weeks, and home pregnancy tests can typically detect hCG in urine once it reaches 25 mIU/mL or higher (although some can detect in at lower levels). This is generally around 12 to 14 days after conception or a couple of days …HCG (human chorionic gonadotropin) is a hormone produced during pregnancy that can be detected in the blood or urine even before the mother misses her period. This hormone doubles about every 2 to 3 days and reaches its peak between 8 and 11 weeks of pregnancy. And you guessed it, it's also what is detected in an over the counter pregnancy test.An hCG level of less than 5 mIU/mL is considered negative for pregnancy, and anything above 25 mIU/mL is considered positive for pregnancy. An hCG level between 6 and 24 mIU/mL is considered a grey area, and you’ll likely need to be retested to see if your levels rise to confirm a pregnancy. The hCG hormone is measured in milli-international ...Beta hCG (aka β-hCG ) is a quantitative serum test (done by your fertility clinic) to determine the level of hCG hormone present in your blood. Serum β-HCG is proportional to the number and activity of the trophoblastic cells, and research shows that a higher serum β-HCG level is associated with pregnancy outcomes and IVF success. An hCG level of less than 5 mIU/mL is considered negative for pregnancy, and anything above 25 mIU/mL is considered positive for pregnancy. An hCG level between 6 and 24 mIU/mL is considered a grey area, and you’ll likely need to be retested to see if your levels rise to confirm a pregnancy. The hCG hormone is measured in milli-international ... Sometimes low hCG levels can indicate that you have had or will have a miscarriage. If the pregnancy fails to develop a placenta, then the levels may be normal initially but fail to rise. Common ...

Jan 26, 2024 · 25–40 weeks. 3,640–117,000 mIU/mL. At around 5 weeks of gestation, the hCG levels for a singleton pregnancy typically range between 18 and 7,340 mIU/ml (milli-International Units per milliliter). The levels of hCG for twins can be higher due to the presence of two embryos. hCG levels at 5 weeks with twins.

Dec 6, 2022 · Outlook. Human chorionic gonadotropin, or hCG, is known as the “pregnancy hormone.”. HCG is made by the placenta and is tied to fetal growth. Small levels of hCG can be detected in the urine ... Causes of vanishing twin syndrome. Advanced maternal age (over 35), though this may simply be because multiples pregnancies are more likely in older women. Chromosomal abnormalities in the vanished twin. Use of assisted reproductive techniques. Small placenta or other placental abnormalities.A molar pregnancy (also known as a hydatidiform mole) is a type of gestational trophoblastic disease (GTD). This type of pregnancy loss is caused by chromosomal abnormalities during conception that result in abnormal growths of placental tissue. Essentially, this occurs when an egg is fertilized, but instead of developing into a fetus, a mass ...Definition. hCG testing. Always higher with twins? Takeaway. While higher levels of hCG can indicate twin pregnancy, it is by no means definitive. You’re going to want to get an ultrasound to...The average blood levels of hCG during pregnancy are: Borderline pregnancy result: 10 tp 25 U/L. Positive pregnancy test: more than 25 U/L. The only way to know what your hCG levels are for sure is by having blood tests which measure hCG, specifically hCG levels for twins. Women who are undergoing fertility assistance and having regular blood ...HCG levels rise quickly and exponentially, usually doubling every 2days 3,4 in the first weeks before reaching a steady level (plateau) around week 10; after which time they slowly decline. 4. What should hCG levels be at four weeks of pregnancy? On average, the hCG level at four weeks of pregnancy, is around 140 mIU/ml 5. However, …A dye stealer is when the HCG levels are so high that it is pulling the dye from the control line, making the test line darker. HCG levels vary greatly from pregnancy to pregnancy, so it is very hard to predict with accuracy whether or not a dye stealer test means you’re having twins. However, it is definitely an indicator of a twin pregnancy.Mar 18, 2019 ... Your hCG level should at least double in a healthy pregnancy—a triple hCG could be twins! I called my husband to tell him the abdominal pain was ...A dye stealer is when the HCG levels are so high that it is pulling the dye from the control line, making the test line darker. HCG levels vary greatly from pregnancy to pregnancy, so it is very hard to predict with accuracy whether or not a dye stealer test means you’re having twins. However, it is definitely an indicator of a twin pregnancy.

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So. Okay. Praying this baby survives and continues growing at my next ultrasound next Tuesday! #2 - I just got my HCG levels back today. 2 days ago I was 46,116 mIU/ml and today I was 43,531 mIU/ml. Doctor did tell me at the appointment that with vanishing twin syndrome the HCG level will rise but then fall a little as the baby is being absorbed.In early pregnancy, a 48-hour increase of hCG by 35% can still be considered normal. As your pregnancy progresses, the hCG level increase slows down significantly. Between 1,200 and 6,000 mIU/ml serum, the hCG level usually takes 72-96 hours to double. Above 6,000 mIU/ml, the hCG level often takes over four or more days to double.Very high levels of hCG are common in women who are expecting twins or multiples, ... But if high levels of pregnancy-related hCG are causing your hyperthyroidism, you'll probably get better early in your second trimester without any treatment. By the second trimester, hCG levels become more stable, so thyroid hormones usually return …Levels of hCG start to increase after implantation and rise every 39–53 hours in the first few weeks of pregnancy. With twin pregnancies, hCG levels can be 30% to 50% higher than those where ...A total of 160 twin-pregnant women were enrolled to establish reference ranges for TSH and FT4 in the current study. The median age was 31 (28–33) years, and the median gestational age at delivery was 37.00 (35.71–37.57) weeks. The median time of thyroid function detection was 9.00 (7.57–10.86) weeks.9,000 - 210,000 µ/L. 16 - 29 weeks (second trimester) 1,400 - 53,000 µ/L. 29 - 41 weeks (third trimester) 940 - 60,000 µ/L. Higher than expected hCG levels may happen if you’re are pregnant with twins and triplets. It may also happen if you have an abnormal growth in your uterus (womb). Falling hCG levels may show a pregnancy loss ...For the most accurate results, take a test first thing in the morning: When you wake up, hCG levels in your urine are more concentrated. Less often, a false negative could be caused by a molar pregnancy, a rare pregnancy complication and type of gestational trophoblastic disease (GTD) that causes a noncancerous tumor to grow in the uterus.Mar 24, 2024 ... A normal HCG level will roughly double every 48 to 72 hours, up to 6,000 mIU/ml. Roughly. Don't obsess. It's not an exact science. (Read more on ...Because hCG levels change so quickly during early pregnancy, the hCG blood test should be repeated within 48 to 72 hours to observe how the hormone level is changing. False-positive resultsIf you are expecting twins, your HCG levels will likely be higher than in a single pregnancy. HCG levels are measured using MIU/ML, which means milli-international units per millilitre. A singleton pregnancy HCG range typically reaches between 25,700 and 288,000 MIU/ML at the 9 – 12 week mark. A pregnancy with twins may display higher …Pregnant women begin producing HCG shortly after a fertilized egg attaches to the uterine lining. Women with severe morning sickness (hyperemesis gravidarum) have higher HCG levels than other pregnant women do. Women pregnant with twins or multiples also have higher HCG levels and are more likely to experience morning sickness. Similarly ... ….

Due to elevated levels of pregnancy hormone hCG, women carrying multiples may have more nausea and vomiting than those carrying only one baby; Your growing faster-than-normal 6 weeks pregnant with twins belly may tip you off. But if you’ve never been pregnant before you don’t have anything to compare it to.Aug 17, 2022 ... And when I say I didn't have high levels, that mine were normal and that high beta-HCG levels don't always mean twin pregnancy because pregnant ...HCG (Human Chorionic Gonadotropin) is often called the pregnancy hormone because it is made by cells formed in the placenta, which nourishes the egg after it has been fertilized and becomes attached to the uterine wall. Levels can first be detected by a blood test about 11 days after conception and about 12-14 days after conception by a urine test. ...Excess Weight Gain. You could be carrying twins if you not overeating but you are gaining weight quickly in the early first trimester, and you put on more than the one to two pounds weight gain recommended for all the first trimester. According to the textbook, Multiple Pregnancy: Epidemiology, Gestation and Perinatal Outcome, (page 300), women …veronicalind. Jan 22, 2024 at 9:10 AM. Hi! I know the only way to know if you are having twins is an ultrasound but I was hoping some of you could share your HCG level and progesterone levels. I feel like my progesterone is really high for a singleton. HCG 14 DPO: 358. HCG 17 DPO: 1162. Progesterone: 81!Navigating the intricacies of twin pregnancies requires a deep understanding of Human Chorionic Gonadotropin (HCG) levels. In this comprehensive guide, we …An estrogen test measures the level of estrogens in blood or urine. Estrogen levels affect fertility, pregnancy, bone health, and more. Learn more. An estrogen test measures the le...hCG levels rise during the first 6 to 10 weeks of pregnancy then decline slowly during the second and third trimesters. As your pregnancy develops, the increase slows down significantly. Between 1,200 and 6,000 mIU/ml serum, the hCG usually takes about 72-96 hours to double, and above 6,000 mIU/ml, the hCG often takes over four or more days to ...Causes of vanishing twin syndrome. Advanced maternal age (over 35), though this may simply be because multiples pregnancies are more likely in older women. Chromosomal abnormalities in the vanished twin. Use of assisted reproductive techniques. Small placenta or other placental abnormalities. Hcg levels during pregnancy with twins, These include the use of fertility treatments, the presence of a multiple pregnancy (e.g., twins or triplets), and certain medical conditions, such as ectopic pregnancy or molar pregnancy. In these cases, hCG levels may be higher or lower than expected for the gestational age. ... It is important to remember that the range of hCG …, An at-home pregnancy test works by measuring levels of a specific hormone in your urine called human chorionic gonadotropin (hCG). While everyone has hCG in small amounts, levels of hCG increase during pregnancy to help grow the uterus and prepare it for pregnancy and childbirth. A positive pregnancy test detects a higher …, Fraternal – nonidentical – twins develop from two separate fertilized eggs. By 6 weeks, their hearts are beating, and at 8 weeks all of their major organs start developing.The twins' faces take shape, with closed eyelids, at 12 weeks, and at 16 weeks their sex organs are apparent.At 24 weeks they begin to store fat and are working on …, Oct 19, 2022 · Molar Pregnancy. Less commonly, high hCG levels can indicate a significant complication with your pregnancy—namely a molar pregnancy. This rare abnormality occurs in one out of every 1,000 pregnancies. Molar pregnancies are believed to result from a genetic mistake in the fertilizing sperm or egg, which causes the cells that would typically ... , Week 9 to 12 – 25,700 to 288,000 mIU/mL of hCG. Week 13 to 16 – 13,300 to 254,000 mIU/mL of hCG. Week 17 to 24 – 4,060 to 165,400 mIU/mL of hCG. Week 34 to 40 – 3,640 to 117,000 mIU/mL of hCG. While it can be tempting to get caught up in numbers, it’s important to remember that the range of what’s considered “normal” hCG levels ..., However, some mothers experience symptoms similar to miscarriage, including: Mild cramping. Vaginal bleeding. Pelvic pain. Decreasing hormone levels (hCG, as detected by blood tests) Trusted Source Fertility and Sterility Early Beta-Human Chorionic Gonadotropin Trends in Vanishing Twin Pregnancies See All Sources. [2], If hCG levels are being measured, they may show a slower rise than would be expected in a normally developing twin pregnancy. Low hCG levels in vanishing twin syndrome are usually present from the first days of implantation. It may be reassuring to a parent to know that loss had nothing to do with something they did or did not do., That said, hCG levels vary from person to person and pregnancy to pregnancy, so hCG levels are not definitive to determine a twin pregnancy. Some people have high hCG levels and only give birth to one baby; others have exceptionally low hCG levels and give birth to multiples. If your doctor has been monitoring your hCG levels, talk to them ..., Human chorionic gonadotropin (hCG) is a hormone produced by the body during pregnancy. Home pregnancy tests detect this hormone in urine to give you a positive test result. While home pregnancy ..., If your hCG level differs, don’t worry, as it doesn’t necessarily indicate a problem with your pregnancy. The most crucial factor is the hormone’s growth rate during the early weeks. hCG levels in multiple pregnancies, such as twins or triplets, are usually higher since more embryos mean more sources of chorionic gonadotropin production., HCG level during pregnancy: Does a high hCG level mean pregnancy? In the vast majority of cases, yes. The typical hCG level around four weeks of pregnancy is around 140 mIU/ml 5, so a high hCG level can be generally considered to mean you are pregnant. However, there are some very rare medical conditions that can cause high hCG levels., Space simulation and analytics company Slingshot Aerospace has been awarded a $25.2 million, 39-month contract by the U.S. Space Force (USSF) to further develop and deliver two of ..., Essentially, a beta-hCG test is used to confirm and/or evaluate a pregnancy via a blood test in a doctor's office. Beta-hCG (β-hCG) is a test that measures the amount of human chorionic gonadotropin (hCG) in the blood. This hormone is produced as soon as 10 days after conception. In healthy pregnancies, levels of hCG increase rapidly in early ..., Feb 1, 2023 · Jump To. hCG by Week. Higher With Twins? About hCG. hCG Testing. When hCG Is Low. When hCG Is High. Conclusion. Several different types of hormones are involved in pregnancy. One of these is... , High levels of hCG during a blood test could indicate twins, although hCG levels vary so this shouldn’t be used as the only indicator. The results of an alpha-fetoprotein test (AFT) could also show a twin pregnancy: The AFT measures the amount of a specific protein produced by a growing baby’s liver and detected in Mom’s bloodstream ..., In early pregnancy, a 48-hour increase of hCG by 35% can still be considered normal. As your pregnancy progresses, the hCG level increase slows down significantly. Between 1,200 and 6,000 mIU/ml serum, the hCG level usually takes 72-96 hours to double. Above 6,000 mIU/ml, the hCG level often takes over four or more days to double., It's more common in multiple pregnancies due to increased hormone levels. Because of this, twin moms should be screened for preeclampsia as early as possible in ..., Life does not have to be a rollercoaster, sometimes it can be a long lazy carousel ride. All photos by the author When I planned my first major travels with my 8-year-old twins, th..., 13 June, 2017. Nausea and vomiting, among the most unpleasant aspects of early pregnancy, affects around 75 percent of all pregnant women during the first three months of pregnancy, according to BabyCenter. Human chorionic gonadotropin, or hCG levels in the blood also rise in early pregnancy, suggesting a correlation between the two., Solution: Put the given values in the doubling time formula: T 2 = T L o g 2 ( h C G 2 h C G 1) T 2 = 2 L o g 2 ( 300 100) T 2 = 2 L o g 2 ( 3) T 2 = 2 1.585. T 2 = 1.26 d a y s. Skip the hassle of manual calculations and turn to this hCG calculator. gain clarity on your pregnancy's progress., High human chorionic gonadotrophin (hCG) levels — this hormone is made during pregnancy and is what a pregnancy test picks up. High amounts of the protein alpha-fetoprotein in your blood. Apart from an ultrasound, your provider might suspect multiples if there’s more than one heartbeat detected during a fetal Doppler scan. , A total of 160 twin-pregnant women were enrolled to establish reference ranges for TSH and FT4 in the current study. The median age was 31 (28–33) years, and the median gestational age at delivery was 37.00 (35.71–37.57) weeks. The median time of thyroid function detection was 9.00 (7.57–10.86) weeks., This type of human chorionic gonadotropin (HCG or hCG) test checks if there is a hormone called human chorionic gonadotropin in your urine. HCG is a hormone produced in the body du..., It is still possible to have twins even if your hCG levels are within the “normal” range for a single pregnancy. However, there is still strong evidence in favor of the idea that hCG levels are typically higher in twin pregnancies. One study in particular found higher than average hCG and estradiol (E2) levels in women carrying twins., The uterus is larger than expected because a twin or multiples pregnancy may cause the mother’s uterus to expand beyond the range of a single pregnancy. Severe nausea, vomiting, breast tenderness, or other pregnancy symptoms; Higher hCG levels. hCG is a hormone detectable in pregnant women’s blood or urine about 10 days post-conception., The hook effect can occur when hCG levels are above 500,000 mIU/mL. 3 The hook effect in pregnancy tests is rare. 4 While hCG levels can vary greatly from person to person, in a typical …, In this Article. What Is HCG (Human Chorionic Gonadotropin)? When Is HCG Produced? How Do HCG Pregnancy Tests Work? What Do Low HCG Levels Indicate? …, Pregnancy blood tests can detect hCG hormone levels as low as 5 to 10 mIU/mL. Urine tests. At-home urine tests require higher levels of hCG to detect a pregnancy, typically at least 20 mIU/mL. If your home pregnancy test is positive, your healthcare provider may offer a blood test to check your hCG levels. The results can help your provider ..., Progesterone levels also can have quite a variance at this stage of pregnancy. They can range from 9-47ng/ml in the first trimester, with an average of 12-20 ng/ml in the first 5-6 weeks of pregnancy. With both hCG levels and progesterone levels, it is not the single value that can predict a healthy pregnancy outcome., Mar 18, 2019 ... Your hCG level should at least double in a healthy pregnancy—a triple hCG could be twins! I called my husband to tell him the abdominal pain was ..., Mar 11, 2024 · hCG level during pregnancy: Does a high hCG level mean pregnancy? In the vast majority of cases, yes. The typical hCG level around four weeks of pregnancy is around 140 mIU/ml 5, so a high hCG level can be generally considered to mean you are pregnant. However, there are some very rare medical conditions that can cause high hCG levels. , Can you tell if you're pregnant with twins based on hCG levels? The short answer is no; hCG levels alone cannot tell you if you're pregnant with twins. This is because so many factors influence hCG levels; no healthcare provider will diagnose twins based on hCG alone., Typically hCG levels that fail to keep rising are a sign of: Ectopic pregnancy. Ectopic pregnancies happen when a fertilized egg implants somewhere outside of the uterus, like the fallopian tube or the cervix. When that happens, lower amounts of hCG are produced and the embryo can’t develop normally. HCG levels alone do not diagnose an ...