This test isn't without risk, however, and isn't performed simply to determine the sex of your baby. I'm often asked if you can tell the baby's sex by the heart rate—based on the myth that one sex is faster than another—but that's just an old wives' tale. Granted, the medical community is skeptical that this method really works. If it swings in a circle, the child is thought to be a girl. One popular belief is that if a woman is carrying the baby high, she is supposedly having a girl, while carrying the baby low means it's a boy. Still, Carr cautioned that although researchers may find this association holds true over an average of 1, babies studied, an individual baby boy could still have a faster heartbeat, and an individual baby girl could have a slower one.
Still, Carr cautioned that although researchers may find this association holds true over an average of 1, babies studied, an individual baby boy could still have a faster heartbeat, and an individual baby girl could have a slower one. And the technicians may have limited medical training to interpret the scans, he noted. Another theory holds that a mother's food cravings during pregnancy may reveal the baby's sex, with sweet cravings signifying a girl and cravings for salty, sour or odd foods linked with a boy. But some moms swear sonograms give clues to a baby's gender as early as six weeks! If the color turns green, the baby is said to be a girl; if it's blue, a boy may be on the way. However, this test is infrequently used. What Is a Fetal Ultrasound? They do so for several reasons: But by the third trimester, a girl's heartbeat tends to be a little faster and a boy's a little slower, he said. That's generally not the case for commercial places doing keepsake images: When a sonographer looks between the legs, if it's "an outie," it's a boy, he explained. Women carrying girls have higher levels of the pregnancy hormone hCG human chorionic gonadotropin , and these higher levels are associated with an increased risk of severe morning sickness, Carr said. Ultrasounds should be used as a diagnostic tool when there's a medical reason to do one, Carr said. There is no harm to the baby during the procedure, Carr said. Here six important facts about ultrasound screenings and sex determination, according to Carr, a professor of obstetrics and gynecology at the Warren Alpert Medical School of Brown University. Until the 14th week of pregnancy, baby boys and girls look exactly the same on ultrasound, Carr said. A baby's gender is determined when the egg is fertilized. Doctors can usually determine the baby's sex during a routine ultrasound visit at this time, but not always. It uses sound energy and not radiation, such as X-rays, to generate images of the fetus. See a slide show explaining fetal ultrasound at the Mayo Clinic. The scans are typically done twice during pregnancy, but the one done between 18 and 22 weeks is when the sonographer ultrasound technician might identify the gender of the baby, if parents want to know. Although the test can be done at any point during pregnancy, women typically get one during the first trimester. And the only risks to the mother may come from lying flat on her back, which might make her feel dizzy, along with the discomfort of having a full bladder, he said. This early ultrasound is often done to confirm a pregnancy, detect the fetal heartbeat and determine the due date, according to the March of Dimes. If the ring swings back and forth, the baby is believed to be a boy. Some parents-to-be can't wait to find out whether they're having a boy or a girl, while others choose to put off knowing the sex until birth.
Video about ultrasound to determine sex of baby:
Is Your Baby a Boy or a Girl? (Pregnancy Health Guru)
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