This is embarrassing to talk about but I need guidance. A little over a week ago I had unprotected sex. He didn't even attempt to pull out.. needless to say my period is 4 days late. I've been having abnormally painful cramps but still haven't started. Usually I cramp 2 days before and then start. And my cramps feel more like a constant tightness around my lower abdomin. It hurts to bend over or put pressure there. It's not possible that I would already miss my period if I where pregnant is it?