Fetal Diagnosis and Therapy, 21(1), 144–147 Gender-related differences in fetal heart rate during first trimester. S., Ventolini, G., Neiger, R., & Downing, C. The Journal of Maternal-Fetal & Neonatal Medicine, 29(5), 803–806 (2017, March 1). First trimester fetal heart rate as a predictor of newborn sex. J., Witsberger, S., Rincon, L., Modak, A., & Baxi, L. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. However, no scientific evidence supports their accuracy. Many people enjoy toying with these theories and making predictions of their own. her cravings are for sweet foods, such as fruit and candy.her left breast is bigger than her right.she experienced morning sickness during the first 12 weeks of pregnancy.the pregnancy bump extends around the abdomen.her hair becomes more full-bodied and shinyĪ woman is more likely to be carrying a girl if:.
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