Okay so I have a question. I had unprotected sex late Saturday evening early Sunday morning and I'm almost positive he pulled out but I might have sat in it or as he was pulling out some cum got close to the region. I'm on birth control but don't take it regularly or might miss a pill here and there. On Monday I started having real bad lower abdomen cramps like period cramps and I'm scared I am pregnant. I can't be pregnant can I?