When will menstruation come after taking birth control pills?

Patient's question:

When will my period come after taking birth control pills? I heard from a few of my classmates that after taking birth control pills, you will never get your period. Is that true? What medication should I take if my period doesn't come after taking birth control pills? Is there any solution?

Doctor's answer:

If you are referring to taking emergency contraception pills after sexual intercourse without any protective measures, generally speaking, vaginal bleeding may occur again within 3-7 days after taking the pills, which is known as withdrawal bleeding. This is also a sign of successful contraception. Withdrawal bleeding is often considered as the normal menstrual period for this month, and the next menstrual period should align with this date. However, frequent use of emergency contraception pills can disrupt hormone levels in the body, leading to menstrual irregularities. Therefore, it is advisable not to take them arbitrarily in the future.

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