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Risk of transmission and other questions

Hello ,
I am Rodrigo. I write you because I have inquiries about risks of transmission of HIV, and also other questions. By October 31th, 2011, I had receptive and protected anal sex ( we used condom which did not break) with a guy whom has HIV (I realized of that the next morning of the intercourse). Also, I did fellatio to him (without condom), but there were not ejaculation, and when we were kissing ( eating a chocolate), I accidentaly bit his lip so I guess there was some infected blood that came into my mouth. I did not have any cut in my oral mucosa, but I was receiving treatment for peptic ulcers because of Helicobacter Pylori infection. He was diagnosed by June 20th, 2011 ( when his viral load was 76,500 copies/ml). Since that time, he is receiving HAART with lamivudine-zidovudine-Nevirapine twice daily, but he told me that there are some days ( at maximun 3) that he does not take the pills.
When I realized of him diagnosis, I went to a doctor who gave me profilaxis about 18 hours post-exposure with lamivudine-zidovudine, at 24 hours I received Efavirenz, and at 36 hours I received Lopinavir-Ritonavir. My question is : What is my overall risk of acquiring HIV, taking in consideration all that I have described above?.
I got an EIA 4th Generation at 33 days post-exposure, and 63 days post exposure ( 33 days post-PEP), both came back negative. How accurate are my results?. Do I need more testing?. I am planning to get another test within 1 month, What is the likelihood that my results would change?.
Thank you very much in advance.


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