對於一些夫妻來說,移植因為身體的后算怀孕原因 ,是天数很難懷孕的,所以會借助醫療技術 ,移植進行人工授精 。后算怀孕一般在采集夫妻雙方的天数精子和卵子之後,一旦人工授精完成,移植就會把受精卵移植到女性子宮當中,后算怀孕當受精卵著床成功,天数就可以了。移植那麽,后算怀孕在移植成功之後,天数該怎麽計算懷孕天數呢 ?移植
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懷孕天數從做試管移植當天開始 ,就算是后算怀孕著床開始,能不能成功,天数那還要之後做血檢及連續觀察判斷的指導意見 :移植後就安心懷著 ,可以適當活動,不需要老躺在床上的,精神保持放鬆哈,得有自信,好的心態有利於胚胎發育的。不要自行做尿HCG檢測,這個除了增加精神壓力沒有什麽益處 。
移植後第15天知道已經懷孕後 ,這時是算懷孕4周多一點,預產期從末次月經算起。
試管嬰兒或人工授精後受孕的預產期計算方法同自然受孕相同,可以按以下3種常規的方法進行計算:
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(1)根據末次月經計算預產期 :按末次月經的第1日算起,月份減3或加9,日數加7 。例如末次月經第1日為2001年5月31日,預產期應為2002年3月7日。若以陰曆推算預產期,月份仍為減3或加9 ,隻是日數加15。例如末次月經第1日為陰曆2001年4月28日,預產期應為陰曆2002年2月14日。
(2)根據胎動出現時間計算預產期 :胎動是指孕婦自我感受到的胎兒在子宮內的活動,一般開始於妊娠18~20周 ,根據胎動開始的日期,再加上20周就可推算出大約的預產期。
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(3)根據受精日計算預產期 :從受精到分娩大約需要265天左右,因為接受人工授精或試管嬰兒孕婦可以明確知道受孕時間 ,所以可以按受精日往後推算265天得到預產期 。
做試管嬰兒男性需具備的身體條件 :作為試管嬰兒移植手術成功與否,很重要的因素是夫妻男方的精子質量,如果精子本身存活率低 ,做試管嬰兒也沒有用。需要做的檢查有 :血液檢查(染色體檢查、抗精子抗體、尿常規 、血常規、血型、生化 、乙肝 、丙肝、梅毒特異性抗體、艾滋病病毒抗體),若男性有弱精症,需要做Y染色體微缺失檢測 。
(责任编辑:百科)
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