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Fetal development month four

Common Questions and Answers about Fetal development month four

fetal-development

Avatar f tn The fetal heart undergoes a considerable amount of growth very early in pregnancy. The most critical period of its development is between three and seven weeks after fertilization, when a simple heart tube assumes the shape of a four-chambered heart. In fact, the heart actually begins beating by the 22nd day of life.
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216278 tn?1308861082 Not all moths have four weeks, it is really 4.3.....which if you are 24 weeks you are in your sixth month, second trimester. Everything I have read says the seventh month, 3rd trimester begins at 27 weeks. Pregnancy counts as 40 weeks, not 36 weeks. I jut learned that once i became pregnant so you aren't clueless.
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