Hi, My boyfriend and I had unprotected sex last Sunday and he said he didn't feel himself cum. My period was supposed to start the following Monday. As the day came, I had little cramps but didn't start my period. As Tuesday came, my cramps became higher and there was still nothing. When Wednesday came, I still had cramps and a little spotting so I put a tampon in. When I pulled it out, it has blood on it but when I went pee otherwise, nothing. (sorry for getting too graphic) On Thursday, I still kept wearing tampons and the blood was still on the but there was still nothing when I went pee. I am on the Birth Control pill and I was just wondering, could I be pregnant? I am getting very worried.... PLEASE HELP!