I had unprotected intercourse with someone on June 16th, 2012. He did not ejaculate inside, nor did he pull out, we just stopped. We were both really drunk. Based on my LMP (6/9/12), if I am pregnant, I conceived on June 23rd, 2012. I am not yet late on my period, but I am terrified of being pregnant. Is there a possibility I may be pregnant?