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孕期大概多少周
更新时间: 2020-11-04 00:00:00  

正常孕期从末次月经开始算到预产期那天是40周,如果从受精那天开始算,应该是38周。一般的算法是从末次月经开始,0到13+6周算是早孕。孕14周到27+6周是孕中期。孕28周到40周之间是孕晚期。孕28周到36+6周之间分娩,就算是早产。37周之后分娩就是足月产。最好的分娩时间是39周到41周之间。超过42周就是过期妊娠,出现胎儿窘迫,死胎,死产的风险大增。

关键词: 孕期 大概 多少

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