Welcome to the Forum. I'm sorry to hear of your condom failure, Statistically this happens on about 1% of sexual encounters an is a bit more likely to occur with new partners than established ones.
Your risk for getting any STD, including HIV from this encounter is low since most commercial sex workers do not have STDs and most exposures to infected partners do not lead to infection. In your case, your partner says she gets checked regularly and that is probably the case. CSWs who insist on condoms are using them to protect themselves, not for their clients' sake. In addition, you have now proven that you did not get gonorrhea or chlamydia from the exposure since your tests at 7 days would have detected infection if it were present. Syphilis is so rare among heterosexuals, even among CSWs that I would not worry further. That leaves HIV. Again, your risk is low. Your partner told you she was not infected and that is probably the case- few CSWs are. Even if she were, the chance of infection with a single encounter is less than 1 infection per 1000 sex acts, on average. Thus, if I were you, I would not worry. Having said that, and from the tone of your post, my guess is that you will want to be sure you were not infected- a standard HIV antibody test taken at 8 weeks will provide a definitive answer, as will the combination of an antibody test with either a p24 antigen test (the so-called 'DUO" tests) or a HIV PCR test when the two tests are taken at 4 weeks after infection. The abrasions on your penis do not change my assessment.
I hope these comments are helpful. If I were you, an as I said above, I would not worry. EWH
also please add to your assessment tht I noticed a couple of very small cuts on my penis afterwards probably because of vigorous sex. also, i have no "obvious" std symptoms. really trying not to interpret any little issue as a sympom of hiv, but it's difficult.