About 6 days ago (September 30), my boyfriend and I had 'sex' for the first time. It was also my first time ever. He never actually put it in all the way, there was only a little pain and no bleeding, and it didn't last long at all. He didn't ejaculate inside me either, and I'm unsure about precum. We did stay naked for a little while but still, he never ejaculated. We didn't use any sort of protection. What are the chances I'm pregnant? I have a certain level of anxiety so I'm stressing out. I did take Plan B less than 24 hours after it happened I'm not supposed to have my period for another two weeks, but tonight, when I went to the bathroom, there was a very light pink discharge on the toilet paper. Then a little later there was some light brown on the pad I'd put on (nothing major) but the actual toilet paper looked mostly fine, maybe a little darker yellow (sorry if tmi). Could this be a potential side effect of Plan B? I know it can mess with your cycle. Please please help.