Is it effective to take one Yuting Pill after having sex three times during the ovulation period?

Patient's question:

Sure, here is the translation of the content you provided:
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No
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Doctor's answer:

After 72 hours of active medication, it is generally effective in preventing pregnancy, so there is no need to worry. If menstruation is delayed, you should visit a hospital for a pregnancy test to determine if emergency contraception has failed.