I have a strange question. I know it might sound stupid, but it is a concern I'm having. Last night my roommate had her boyfriend over and they had sex. She went to the bathroom directly after. At this point in time I didn't know about it and I used the bathroom a few minutes later. When I sat down I noticed the seat was wet, but I didn't touch the wet area directly, and there was a little repulsing curly hair stuck to the seat as well. It grossed me out, and I was going to make her clean it up but she had left when I got out. I refused to clean it, and told her to do it. She never did and this morning, around 11 am, i sat down on the seat to use the bathroom and my thong hit the toilet seat. I didnt realize that the hair and the dried wet marks were still there until I had pulled my pants up. I went to my room and changed immediately, but my question is there any risk of me getting pregnant through this kind of contact?