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孕一般是多少周

更新时间: 2020-11-05 00:00:00     

正常的怀孕周期是40周左右,但也会出现预产期提前或预产期推后的情况。

怀孕周期是指从受孕到生产之间的时期。医学上规定,以末次月经的第一天起计算预产期,整个孕期共为280天。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预产期有1~2周的出入也是正常的。

关键词: 一般 多少

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