Some weeks back me and my boyfriend were as usuall having unprotected sex and a few minutes after that I experienced this very sharp painful pain up my rectum and my lower abdomen. its carried on for hours but the pain kept decressing day by day. after it was all gone we decided to have sex again and this time only my rectum got hurt. I been doing some research on the internet and it says I could be pregnant. I havnt had any symptoms apart from d fact that Im 2 days back on my periods.