I take birth control regularly but have been on antibiotics for a few days. My boyfriend and I had unprotected sex but he pulled out before he came. I took plan B the day after because I was worrying myself so much. I do not normally get my period on the pill but will taking plan b mess that up?
The antibiotics could mess it up. If its effecting your pills it can cause breakthru bleeding. Be sure you use a condom the whole time you're on the antibiotic and a week after. Oh, what pill are you on, that can make difference? The plan B is going to mess with your cycle too.
Am sort of in the same boat. Took antibiotics while on the pill. Had sex, started to panic and took plan b. And then I got my period during week 3 of my pill pack. And it's been 5 period days. Hoping it slows down! That's never happened before. So now I'm wondering if I should start a new pill pack on Sunday to make sure I'm protected or still have my week on placebo/sugar pills.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
I had unprotected sex 5 days after the start of my period. Took plan b. light bleeding a week later?
Posted 29 Jan 2014 • 2 answers
Posted 7 Sep 2014 • 1 answer
Posted 13 Oct 2014 • 1 answer
Posted 15 Jun 2015 • 1 answer
Posted 3 Dec 2015 • 1 answer