我怀孕48天了有孕囊卵黄囊但没有胚芽和原

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快速问医生

病情分析：怀孕48天，有卵黄囊，没有胎芽胎心，这个不是很乐观，有两种可能性，一种是实际怀孕的天数短，另外一种可能性就是胚胎本身发育不良，一周后再复查彩超看

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问题描述：我已经生过一胎了，现在我怀孕48天了去医院做b超有孕囊卵黄囊但没见胚芽和心管博动请问这样是什么原因