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預產期是夏天一般會提前嗎,預產期提前幾天是正常的？

出處：媽媽育兒網 日期：2019-05-21 14:52:10 編輯：瓊瓊
導語：夏天也會有很多的準媽媽進入病房生產，而預產期就是一個關于預計生產大致時間范疇，那么預產期是夏天一般會提前嗎,預產期提前幾天是正常的？跟隨著小編一起去了解一下吧！

預產期是夏天一般會提前嗎？

預產期的計算方法是孕婦懷孕前最后一次經期來臨時間+280而得到的時間結果，不過這個預產期的時間是一個大致的時間范疇哦。而并非就是一個確切的時間概念，因此預產期提前是一種正常的現(xiàn)象哦！
而有人會覺得夏天天氣炎熱，孩子在媽媽肚子里面會更加想要早點出來，因此夏天一般預產期提前，這個說法是不正確的哦。
影響預產期的因素是多重性的，雖然夏天的溫度較高，是會影響預產期的提前，但是并不是絕對的。
只能說夏天的天氣會是影響預產期的一個因素之一哦！而且也并不是所有孕婦預產期都會提前的，5%的產婦預產期剛好是準確那天，而其他的產婦不僅有提前的可能，也有預產期推遲的現(xiàn)象出現(xiàn)哦！

預產期提前幾天是正常的？

預產期提前14天(2周)內算正常。
預產期即孕婦的預計分娩時間，是醫(yī)學上依據末次月經估算的一個參考日期，預產期本身就與受孕日期有差異了。
加上每位女性月經周期長短不一，胎兒什么時候出生受到宮內環(huán)境、胎兒發(fā)育情況、孕婦身體條件和現(xiàn)實環(huán)境等因素的影響，出生時間不能準確預計。
所以推測的預產期與實際預產期有1-2周的出入是非常正常的。一般說來，在預產期前后2周內分娩都是正常的情況。
而在預產期38周~42周內分娩的都算是足月兒。所以說，預產期提前14天(2周)內算正常。

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