can you tell you're having twins before scan?
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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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The only way to confirm a twin or multiple pregnancy is by visually identifying the multiple fetuses with ultrasound. If your doctor or caregiver can only see one baby, it is not likely that you're having twins or multiples.
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All fraternal twins and 20 to 30 percent of identical twins have separate placentas. By 18 to 20 weeks, a technician may be able to identify the babies' sex, assuming that both are positioned such that the technician can get a good look at their genitals.
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It is just a precaution and there is probably nothing to worry about. Baby might be measuring small because its in a funny position, because your uterus is already stretched from your previous pregnancy, or could just be small. At the scan they will make sure that the flow from you to the baby is fine.
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Same-sex twins with separate placentas can be fraternal or identical. For health reasons, it's good to know whether your twins are fraternal or identical. To find out whether twins are identical or fraternal, you can ask for a genetic test after your babies are born.
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The only definite way to find out whether you're having twins or other multiples is to have an ultrasound scan. The best time to have this ultrasound is at 10-12 weeks of pregnancy. This is usually when your health professional can say for sure how many fetuses, placentas and amniotic sacs there are.
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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. It takes a few days for the hCG production of twins to outpace the hCG production of one baby.
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["Are there signs that you're carrying twins? As soon as pregnancy begins, your body begins to produce hormones and undergo physical changes. ... ", 'Morning sickness. ... ', 'Fatigue. ... ', 'High hCG. ... ', 'Second heartbeat. ... ', 'Measuring ahead. ... ', 'Early movement. ... ', 'Increased weight gain.']
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Elevated Beta-hCG Levels That said, you may have a very early positive pregnancy test if you are carrying twins.
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Additionally, some NIPT methodologies are not capable of screening twin pregnancies. ... When a trisomy is present in DC twins, usually only one twin is affected. Therefore, NIPT must be sufficiently sensitive to detect this trisomy at lower than average fetal fractions (1-3, 5).
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And while most women pregnant with twins or more will experience the same pregnancy symptoms as those pregnant with a singleton, they do often experience heightened pregnancy symptoms - severe nausea, extreme fatigue and fast weight gain - that may indicate that there are twins in their future.
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An ultrasound scan is the only way to confirm that you're pregnant with twins (McAslan Fraser nd, NICE 2011). The earliest you're likely to find out is between 10 weeks and 14 weeks, when you have your dating scan (McAslan Fraser nd, NHS 2019, NICE 2011).
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At seven weeks, the embryo's heartbeat can be detected through an ultrasound scan. A heartbeat is the first sign of a healthy and live foetus. The mother's reproductive health is checked. Through an ultrasound scan at 7 weeks, twin or multiple pregnancy can be detected in the form of multiple gestational sacs.
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When twins are born, the physician is usually able to identify whether twins are identical or fraternal by examining the placenta; identical twins generally share a placenta, while fraternal twins are usually in two separate placentas. ... An exact match proves that the twins are identical.
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Only a few cases are documented in medical literature. Superfetation is suspected only when the twins are of different sizes and at different stages of development. It is typically noticed during a routine checkup on the ultrasound.
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Although two fetuses develop simultaneously in superfetation, they differ in maturity, having been conceived days or even weeks apart. ... Superfetation is suspected only when the twins are of different sizes and at different stages of development. It is typically noticed during a routine checkup on the ultrasound.
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Multiples Can Be Tricky to Detect However, most women who spontaneously conceive twins, triplets, or more won't begin to suspect anything out of the ordinary until their pregnancy progresses. But there are some hints that show themselves as early as the first trimester.