So, I know that I made a mistake. I decided to get on birth control, during the first week, it was New Years, by that time, I had only been taking it for about two days. My boyfriend and I got drunk and ended up having unprotected sex. We normally always use a condom. I haven't got my period yet, because according to the pills schudule, I'll get it in a could of days. But the last few days, I've been feeling nauseous, headache, and I've been peeing a lot. I've never been pregnant before. So I'm wondering what the early signs are, is it possible I could be pregnant?