Plan B - When do you start to experience the side effects?
- Asked
- 13 May 2017 by Stephanie289
- Updated
- 17 May 2017
- Topics
- plan b, side effect
Responses (1)
Everyone is different. It also seems to depend on where you are in your menstrual cycle when you take it.
Some symptoms last a week or two, others can be longer.
Sometimes you get no side effects, other times you get lots.
Is there something you're particularly looking out for?

Further Information
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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Well I had my last period was from April28th - May3rd. I had intercourse on May 7th. Then I had took the pill on May 9th. And didn't experience much effects within the 24 hours till after a few I started to feel the symptoms of the pill then it's been a week and a few days I started to feel cramps not severe and started to see little light spotting when I wipe and I'm wondering if that's part or the symptoms or could it be implantation bleeding? Pregnancy?
Very common Plan B side effects, yes.