I'm not pregnant. Help? A couple of weeks ago, my boyfriend and I had sex, and the condom broke. I had been on birth control for just short of two weeks, which is when my gynecologist said it was safe to have sex. But now I should be on my period, and I don't think it is just irregular because birth control is supposed to keep track of your period. I took a pregnancy test, and it came out negative but I still haven't gotten my period. I'm young, and there's no way I could have a baby. Can someone explain things to me?