I am worry a lot about this. I met a woman and we had sex. I performed oral sex on her and I licked her anus for a long time. I also had sex with her using condom,but I saw blood in the condom. Some of it could get in my mouth. I did not brush my teeth that day before it happened. After we done, she said that she had sex with others for money, and this made me scary . I wish I did not do this, Can I get hiv this way if she is hiv positive. I asked her, she said she is negative, but I am doubtfull she may be lying. What other std can I get?My main concern is HIV, THANKS.