I feel like this is a dumb question but I really am worried about this. My boyfriend and I were fooling around and I was sitting on his lap and he ended up "finishing" and I didn't notice so we kept on grinding for a little bit. He was wearing some gym shorts and I was wearing some small thin biker shorts and a thong. I'm not positive any got on my vaginal area but im just going to assume that it did for this question. I'm also on ortho tri cyclen lo (I think that's the name but it's something like that) and I take it pretty regularly in a time period between about 10-11:30 every night. So the sperm would have had to travel through a small layer of clothes and I'm on the pill. I'm just wondering if it's a possibility that I could be pregnant because I'm getting paranoid worrying about it and I just want some comfort about this.