I gave my boyfriend a blowjob and I had all of my clothes on. when I got to the resturaunt, I washed my hands with warm water, after this I went to a friend's house and washed them with warm water again and dried them, then I went to the bathroom and wiped with toilet paper. could I have gotten semen on the toilet paper and gotten it in my vagina? p.s. this all happened in a matter of 30 minutes