I have been on birth control for about 3-4 years now. Recently I had unprotected sex and he pulled out (twice) and this was about 2 weeks before I was supposed to get my period. The following week after sex I started feeling nauseous which I never do, and I got cramps which I always get a week before my period. I took my last pill a day late. Anyways, I got my period a day early but it was very heavy and is still going on marking day 5. I had very very bad cramps the second day of my period and usually they aren't that bad. But my period has been consistent and heavy, is there any chance of pregnancy or no? Please help!