怀孕十个月
由于每一位孕妇都难以准确地判断受孕的时间，所以，医学上规定，以末次月经的第一天 怀孕起计算预产期，其整个孕期共为280天，10个妊娠月（每个妊娠月为28天胎儿在母体内生长时间：应为 40周，即 280天。）。孕妇在妊娠38-42周内分娩，均为足月。由于每位女性月经周期长短不一，所以推测的预产期与实际...
懷孕九週症狀
怀孕十个月
由于每一位孕妇都难以准确地判断受孕的时间，所以，医学上规定，以末次月经的第一天 怀孕起计算预产期，其整个孕期共为280天，10个妊娠月（每个妊娠月为28天胎儿在母体内生长时间：应为 40周，即 280天。）。孕妇在妊娠38-42周内分娩，均为足月。由于每位女性月经周期长短不一，所以推测的预产期与实际...
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