So I had sex 3 weeks ago while on spring break, with my now ex. He didn't wear a condom, the entire week. But I took plan b then first day after having sex. When I returned home, we broke up and I started bleeding for like 4/5 days, it was kinda a brownish red and it would go from kinda heavy to barely there.. now my period is supposed to start in 2 days and I'm having none of the normal symptoms I usually have. I took 2 pregnancy test already last week and they're negative. I was just wondering even if I took plan b so early am, is there still a chance I'm pregnant?