Discussions that mention ortho-cept

Sexual Health - Women board

I was put on some strong antibiotics a few weeks ago and I have been taking Ortho-Cept for a few years, always on time. Well, I had sex with my boyfriend near the end of my antibiotics, and I know they affect the BC pills, so I took Plan B as a precaution afterwards. Now, I was supposed to get my period today and haven't. I'm sure I'm not pregnant but has anyone had experience with Plan B and know about how long it took to get their period? And since I'm on birth control, when I start a new pack won't that keep my period from coming if it hasn't already? Thanks in advance!