排卵期同房事后有吃避孕药还会怀孕吗

来自周齐医生的专业解答，快打开看看是否又获得了新的知识点～

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快速问医生

病情分析：你好！在排卵期同房，这种情况怀孕的几率会很大的，但是事后服用了紧急避孕药。怀孕的几率会降小，但是也不可能百分之百确定不会怀孕。可以在事后一周去医院查血hcg。可以测出来时候怀孕。

周齐

主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：上个月二十号来的月经，这个月四号同房了，事后有吃避孕药，还会怀孕吗。如果差查早孕的话，事后一周可以查血hcg吗？多少值是没怀孕。