I had unprotected sex and the guy said he pulled out in time, I think he did. I took plan b one step about 29 hours after because I was still worried. A few days after I took the pill I had light brown bleeding for maybe 4 days and at about that time I noticed that my vagina looks more purple which is a sign of preganacy? Its been almost three weeks since I had unprotected sex and I'm supposed to get my period in a week but I know plan b can make it late and I tend to be a little irregular. I've had an increase in acne and head aches and bloating but I'm also traveling right now causing my diet and skin care routine to change, so I'm not sure if those symptoms could be related to the pill or pregnacy? Is it possible that I'm pregnant?