The month I took two plan b pills my period was like a week late but it was normal, the following month I had a VERY light flow mostly the brown yucky stuff and yes I had sex but I used protection, my period is said to start in about two weeks and I have no symptoms of anything yet, but I'm kinda being a little paranoid, condom could have slipped or precum I don't know! Could my light flow be from the pills the previous month? Or am I paranoid that I could be pregnant and  should I just wait it out two more weeks?