My boyfriend and I "dry humped" he had underwear and shorts on and I had very short loose shorts on along with underwear. He was very rough but I am not sure if penetration was possible. I did notice a few spots of blood in my underwear afterwards but never again. This happened on the 9th and supposedly my ovulation day was the 11th. My period was supposed to start on the 25th but it still hasn't. Could I be pregnant?