hello! i am 28 years old, considered bisexual... i have sexual contact with unknown stranger. ( later i found out he was an active gay sex worker, hiv carrier..very infectious). we did anal sex, i am the top and he's the bottom. our sexual pleasure lasted about 10 minutes or more. i didnt use any condom because i thought hes clean. i did this insertive type lasting about 2 minutes, i didnt ejaculate at him. I also did oral sex (blow job,) i even tasted his pre cum fluid. Can i have a greatest chance to get infected even i tried this only once? i know my partner did this several times with multiple partners. its almost 2 months now since that affair happened and am really afraid to have a check up, denying unfavorable result. through blow job, can i get this hiv? if the partner is highly hiv infectious, he can easily transmit this virus even at 1 affair only? whats the chance that i am still negative for hiv? pls help me...i am really scared. am a nurse and dont want to lose my job....