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孕早期多少周之前
更新时间: 2020-11-04 00:00:00  

孕早期是三个月,即孕12周之前。临床上把孕期划分为40周,在头三个月的时候,也就是孕12周之前是孕早期,4-7个月也就是孕13-27周,是孕中期。孕28周以后也就是8个月以后,叫孕晚期,临床上就是这样划分早、中、晚三个时期。一般孕早期三个月和孕晚期的最后的那几个月不允许性生活,孕中期可以正常性生活。而且还要求孕前三个月,和孕期三个月要口服叶酸,以防出现神经管性的畸形,而曾经有过脑积水或者脊柱裂病史的孕妇,要加大剂量口服叶酸。

关键词: 早期 多少 之前

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