I've been on birth control for a few months and very regularly. It's a combination pill and I take it usually with the hour of my scheduled time every day. I never miss a pill. Right at the tail end of my sugar pills I had unprotected sex with my boyfriend and he did not ejaculate in me. It was a mistake, and it makes me nervous seeing as I'm a performer. I then took plan b. It then happened again (stupid I know, once again a mistake) and I took another plan b pill. This happened over the course of 4 days. I continued to take my birth control and started a new pack as soon as sugar pills were done. I'm now a week into the new pack and I'm experiencing cramping under my right hip bone. And I've been cramping and sick and nauceous since I took both pills. But I still worry I am pregnant. Is there a good chance I could be???