My boyfriend and I had unprotected sex, sorta, he urinated before anything and he put it in me for about 15 seconds at most and he pulled out because he didn't want to risk me getting pregant or anything like that, so I finished him off in another way, I started my fertile window the next day so I wasn't near ovulation time but I took plan b within 22 hours just in case to be on the safe side, so what are the possibilities that I may be pregnant?