Thanks for writing back. May be I am letting my guilt consume me after all. I hate to worry and know that I shouldn't and be unable to stop it. I know what I did was wrong and I am paying for my drunk actions now. I guess what worried me is the infection my fiancee had. While it was more than likely totally unrelated, it added fuel to my fire.
You sohould more on. There is no chnace you have anything. First off, your sex was proetced, so right there you didn't even need testing. Lack of symptoms and negative tests prove that you didn't get anything. Why are you worried about this? You are letting your guilt comsume you. You should move on, or otherwise confront your guilt in a way it will be resolved. STD's are not the problem here.
My response is going to confirm what you already know (intellectually) even if part of you (emotionally) remains concerned. The exposure you describe was safe sex with almost no risk; you had negative tests (indeed were over-tested, there being no reason to have spent your dollars on the "fancy" HIV tests); and have no smptoms to suggest HIV or any other STD.
On top of all that, in general the likelihood of STD in commercial sex workers is LOWER, not higher, than in the general population of sexually active women of similar age. Despite what your partner was told by her doctor, if you were to do STD diagnostic studies in 100 women with spotting between periods and in 100 prostitutes, many more of the former than the latter would have gonorrhea, chlamydia, or something else. I'm not implying that your partner in fact had an STD. But on the basis of statistical probabilities, that's a more likely source of STD in you than condom-protected sex with a commercial sex workier.
To answer your specific question, no, it is not possible for you to be infected at this time; or, to put it another way, if you are infected with something, you didn't catch it from your contact 7 weeks ago. It might theoretically happen, but with such low statistical probability that you can and should consider it impossible.
Bottom line: Relax and stop letting this event bug you.
Best wishes--- HHH, MD