這也是我想不通的地方,就算推遲5天也不大對。一般人月經第一天後15天左右排卵。受精卵著床還得6到7天。這時候才算開始發育吧?
這也是我想不通的地方,就算推遲5天也不大對。一般人月經第一天後15天左右排卵。受精卵著床還得6到7天。這時候才算開始發育吧?
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