does being pregnant with twins make your hcg levels higher?
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Specifically, twin and multiple pregnancies might have 30-50% higher hCG levels than singleton pregnancies. Even so, a detection of high hCG levels can't reliably predict twin pregnancies. That's because hCG levels vary greatly between each woman, and there's a wide range of normal levels.
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It is commonly expected that HCG levels will double over 48 hours during the first trimester of a normal pregnancy. There is wide variation in HCG levels, however, particularly late in the first trimester and with values greater than 5000 IU/L.
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Typically, the hCG levels will double every 72 hours. The level will reach its peak in the first 8-11 weeks of pregnancy and then will decline and level off for the remainder of the pregnancy.
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If you're at risk for miscarriage or an ectopic pregnancy, you're more likely to have hCG levels that don't double. They may even decrease. Therefore, your doctor may ask you to return to their office two to three days after your baseline blood test to see if your level has doubled appropriately.
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HCG levels rise eight days after ovulation, peak at 60 to 90 days, and then lower slightly, leveling off for the remainder of the pregnancy. Typically, during the first 10 weeks of your pregnancy, HCG levels double every two days.
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In fact, most women carrying twins, triplets or more will go on to have uneventful pregnancies and healthy babies. However, there are conditions that can arise in any pregnancy, such as anaemia, preeclampsia or gestational diabetes, which are more common in multiple pregnancies and are therefore worth watching out for.
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Although certain factors increase the chance of having twins, there is no way to improve the odds of having twins naturally. A woman will usually find out that she is pregnant with twins from an ultrasound early on in the pregnancy.
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According to the journal Obstetrics & Gynecology , a 53 percent or greater rise in hCG levels after two days can confirm a viable pregnancy in 99 percent of pregnancies. An important factor to consider with doubling times is the starting hCG value.
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You may choose to test before the week is up, knowing that hCG nearly doubles every 48 hours. This is not harmful to anything other than your wallet. Though you may continue to get a negative result until your body builds up enough hCG to turn the test positive if you are pregnant.
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"One of the things that is postulated as causing morning sickness is high levels of human chorionic gonadotropin, and we know that levels of this hormone are higher in twin pregnancies, so women carrying twins have a higher incidence of nausea and vomiting in the first trimester," says Al-Khan.
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If you are using a regular pregnancy test (not the super-sensitive variety) and get an immediate positive (especially a very dark positive indicator) a few days before your period is due, there may be an increased chance that you are carrying twins.
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Two pregnancy-related hormones—human chorionic gonadotropin (hCG) and estrogen—cause higher measured thyroid hormone levels in your blood. The thyroid enlarges slightly in healthy women during pregnancy, but usually not enough for a health care professional to feel during a physical exam.
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Doubling times for hCG are a good way to check whether a pregnancy is progressing normally until about six or seven weeks after your last menstrual period. In a typical pregnancy, your hCG levels double every 72 hours.
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In twin pregnancies, maternal serum progesterone levels are nearly twice those in singleton pregnancies (15) . This may also increase the risk and severity of IH in twin pregnancies. ...
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If you find that you're feeling extra, extra pregnant and believe that you might have twins on the way, there's really no substitute for an ultrasound to confirm that you're carrying multiple little ones. Increased hCG levels can be an indicator of a pregnancy that includes twins, but it's not conclusive evidence.
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Tests may not detect pregnancy until HCG has risen to a certain level.
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Human chorionic gonadotropin (hCG). High hCG levels may mean that the baby has Down syndrome. This condition is a chromosome problem. It causes learning problems and some physical changes.