So over the weekend I had sex 4 times and he didn't use protection. I'm almost positive he came. It's been 4 days since it happened but I'm feeling all crampy and my stomach feels like it's tightening. Plus on top of that, I did drink but I don't have hangovers anymore, so I'm not sure if my stomach is upset or if I'm paranoid and freaking myself out.. so can someone help please?