I'm 17, my boyfriend of 2 years and I had unprotected sex two weeks ago I was supposed to get my period a week after we had sex but it never came. My periods are usually on time. I got it 5 days later, or at least I think I did. It was brown and pink ya I got some cramps but it was brown and pink that has never happened. I got a rash the day of the brown and pink discharge, and I can't go to the bathroom and I feel I have been peeing more than usual. Could I be pregnant?