I had sex on the 4th I was already 2 days late. I freaked out out so I bought plan b on the 5th. I have not had sex in over a year. I had used ones Plan B before. But I really don't remember much about it. How long does it take to work.
How long does it take for Plan B too work?
Question posted by Liajojo on 7 Aug 2017
Last updated on 8 August 2017
If your period is always regular, then you will not have been ovulating when your period was due. It's worth learning about a woman's menstrual cycle, as it could save you stress in the future.
Plan B works by delaying ovulation until the sperm has left your body. If you are already ovulating when you have sex, then Plan B cannot do its job, & you'd need one of the other forms of emergency contraception. In this case, you indicate that you were no where near ovulation.
- Plan B uses and safety info
- Plan B information for Healthcare Professionals (includes dosage details)
- Side effects of Plan B (detailed)
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