A member asked:

Can your period be 5 days late after taking plan b? i took the pill 4 days after my ovulation day?

A doctor has provided 1 answer
Dr. Yvette Kratzberg answered

Specializes in Pediatrics

Plan B, is emergency contraception you take within 72 hours after unprotected sex. It contains a high level of hormones that blocks ovulation and interferes with the implantation of a fertilized embryo and resets your menstrual cycle. It is not effective if taken 72 hours after you have unprotected sex. Typically the hormones in Plan B cause irregular bleeding, breast tenderness and nausea.

Answered 8/3/2021

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