Morning, firstly this forum is proving to be a big help at this time to me. Just a question to throw out there to everybody. Have read on here that transmission of HIV is very difficult from female to male vaginal sex -iit is true. 1) I am unprotected vaginal sex single exposer hiv positive girl. I am circumcised male. Male circumcised reduce the risk it is true. 2) 15 months post exposer my hiv western blot ,hiv rna pcr qualitative ,4th generation test ,elisa, tridot all are negative. 3) what is the exact hiv windowperiod. 5) some doctors says every 6 months take hiv test hiv windowperiod is 3 months to 10 years it is true. 6) I am take every 6 months hiv test ar any further test is needed. 7) I am worried this reason about my partner hiv positive but my test result all are negative any delay seroconversion I am become positive. 8) I am thinking all. Ways my partner hiv positive but still I am negative but future said it is come positive. No sleep. No eat. Only think hiv. Pls clarify me thank you for your great job.