Here's the dilemma. I was on antibiotics for strep throat during the first week of my birth control pills. The bottle says it could "alter the effectiveness of birth control pills". Last night my boyfriend and I had sex. Generally, we don't use condoms (I know, I know) but I'm a bit paranoid about the BCP not being as effective. So, just my luck, the condom broke! He didn't finish, but the pre-cum could have semen in it. So, I got Plan B Pills (the morning after pill). I haven't taken them yet as I still have a day or so in the window to take them. The question - If I take the Plan B Pills, do I continue to take my birth control pills where I left off?