does being pregnant with twins produce more hcg?
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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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Ultrasound. Although the factors above may be signs of a twin pregnancy, the only sure way to know you're pregnant with more than one baby is through an ultrasound. Some doctors schedule an early ultrasound, around 6 to 10 weeks, to confirm the pregnancy or check for issues.
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This is a home-use test kit to measure human chorionic gonadotropin (hCG) in your urine. You produce this hormone only when you are pregnant. What is hCG? hCG is a hormone produced by your placenta when you are pregnant.
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In most normal pregnancies at an hCG level below 1,200 mIU/ml, the hCG usually doubles every 48-72 hours. At levels below 6,000 mIU/ml, the hCG levels normally increase by at least 60% every 2-3 days.
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In the first four weeks of a viable pregnancy, hCG levels will typically double about every two to three days. After six weeks, the levels will double about every 96 hours. So, if your baseline level is higher than 5 mIU/mL, your doctor may order a repeat test a couple days later to see if the number doubles.
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IUI itself isn't associated with an increased risk of a multiple pregnancy — twins, triplets or more. But, when coordinated with ovulation-inducing medications, the risk of a multiple pregnancy increases significantly.
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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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In general, however, if the hCG levels are dropping in the first trimester, this probably is a sign of impending miscarriage. On the other hand, slow-rising hCG levels that do not double every two or three days in early pregnancy may be a sign of problems, but can also occur in a normal pregnancy.
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At this stage, it's likely you have an ultrasound scheduled if you haven't already had one. Some people report showing earlier when pregnant with twins, but the point at which your pregnancy begins to show varies depending on the person and the pregnancy. Many people will show earlier during their second pregnancy.
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There have been some small studies that suggest folic acid may increase the likelihood of conceiving multiples. But there aren't any large-scale studies to confirm that this increases your chances for multiples. If you are trying to get pregnant, taking folic acid will help protect your baby's brain development.
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While most multiple pregnancies conceived with fertility treatments are fraternal twins, the use of fertility treatment does increase your risk of having identical twins. According to one study, identical twins made up 0.95% of the pregnancies conceived with treatment.
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But carrying twins can put you and your babies at increased risk for certain pregnancy-related complications, including premature birth and diabetes. Don't let this alarm you. With good prenatal care, you can greatly increase your chances of enjoying a healthy pregnancy and healthy babies.
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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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In the general population, identical twin pregnancies occur 0.45% of the time, or 1 in 250 births. While most multiple pregnancies conceived with fertility treatments are fraternal twins, the use of fertility treatment does increase your risk of having identical twins.
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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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As early as 11 days after conception, it is possible to detect the presence of this hormone in the blood and within 12-14 days when it is excreted in the urine. If you are having twins, then your hCG levels are likely to be different to another pregnant woman who is carrying one baby.
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Those early positives might be one clue that you're having twins, but don't count on it. Here's why: Home pregnancy tests look for the presence of human chorionic gonadotropin (hCG) in your urine, and levels of that hormone are indeed higher in multiple pregnancies — but not right away.