Prince Harry says he wants to have a little girl! To conceive a boy you should: This screening, which is called the cell-free DNA test, is done at the eighth or ninth week of pregnancy. But the common prenatal scan wasn't intended as an exam to find out the baby's gender; it was meant to image the developing fetus for other medical reasons, he said. She is also the creator of WhatToExpect.
See a slide show explaining fetal ultrasound at the Mayo Clinic. Be wary of keepsake ultrasounds Carr said that he understands the psychology of expectant parents wanting to see an image of their baby. Beyond ending the guessing game, there are medical reasons why mothers and fathers may want to learn the sex of their baby from an ultrasound. This is because some parents-to-be want to host a gender-reveal party for family and friends to share the news. Take supplements such as calcium, folic acid, magnesium and vitamin C to help make the cervical mucus acidic which will in turn kill the Y sperm. And the technicians may have limited medical training to interpret the scans, he noted. The procedure is tightly regulated when it occurs in a hospital or medical clinic, he added. But he warned there's not a hard and fast relationship between morning sickness and fetal sex. Both the egg from the mother and the sperm from the father carry sex chromosomes. Ultrasound uses high-frequency sound waves to produce an image on a screen of the baby in the mother's uterus. The changes in the pH environment within is now thought to affect baby's gender. Other methods focus on sexual positions. Most experts consider the claims of these kits to be suspect. 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. Manipulate the time of intercourse According to the well-known theory developed by Dr Shettles known as The Shettles Theory , sperm with the Y chromosome boy sperm travel faster and have a shorter life span than sperm with X chromosome girl sperm. For example, to increase your odds of having a boy, make love standing up or doggy style, and be sure to climax first. 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. Lately, as more couples turn to in-vitro fertilization procedures to conceive a child, the issue of selecting the sex of a baby for purposes of "family balancing" rather than for medical reasons is controversial and raises ethical concerns. It may be used in women when there is an increased risk of chromosomal abnormalities, such as in older mothers, he said. Eat a diet higher in magnesium, calcium and acidic foods such as corn, meat, beans, fish, plums, coffee, eggs, liver and yogurt. 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. He said about 85 percent of couples want to find out the baby's gender before delivery. A word of caution: If the ring swings back and forth, the baby is believed to be a boy. Additional resources Johns Hopkins Medicine explains: A blood test for pregnant women that's been around for about three years can also determine the sex of the fetus with 98 to 99 percent accuracy, Carr said. Folk wisdom has linked experiencing severe morning sickness with having a girl, and this idea may have some science to back it up.
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