Hi. My boyfriend and I had protected sex well over a month ago. I have also been on birth control for a pretty long time, and have never missed a pill(but sometimes don't take it at the same time everyday). I know that there is a thing called pre-cum but my boyfriend didn't ejaculate inside of me, or at all. Along with this, he even blew up the condom afterwards to make sure there were no tears in it. About a week later I got my period on time, but the day before it was due I began spotting which I have never done. I began freaking out so about 2 weeks after my period I took a home pregnancy test that showed negative. I've had no sexual intercourse since then, but am still worried. I got my period again this month on time, but it's still lighter than previous months. I don't know if it's my hormones changing because I recently changed birth controls from Levora to Yaz about a week ago. Maybe it's just my guilt or something, but everyone I've talked to says there is no way that I am pregnant. Does anyone disagree? I really am stressed out and can't sleep. I dont know whether to stop stressing or buy another test. Please help? Any advice would be greatly appreciated