I did a foolish thing yesterday. I met a CSW and she said she had her periods going on. She had her tampon and she removed it in front of me and there was some blood marks on it.... we did not have sex, but she started doing anal fingering for a while. I am really concerned if the blood from the tampon stuck to her fingers and while fingering I might have been exposed to HIV? What are the chances ... I am not really sure if her fingers really touched the blood on the tampon .... any thoughts ...