Plan B effects: Plan B can effect more than one cycle of menses. It is possible that cycle will be disrupted. Check urine pregnancy test 3 weeks from date of unprotected sex to determine if pregnant. Plan B is 95% effective when taken within 24 hours of unprotected sex.
Answered 3/17/2017
764 views
Next cycle: Likely Plan B was successful and you should have your next menses as expected. Use birth control and protection against STIs if you continue sexual activity. All the best.
Answered 3/17/2017
764 views
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