I recently had a high risk exposure; the guy was positive since 2009. He did not mention it to me until after the fact. They stated they were on Meds. I did purchase HIV Home Test kit at two and 4 weeks; both are negative. No symptoms besides nervousness. My question is that I have been reading so much, in fact, to much about 1 time exposures possibly not leading to exposure. Of course 1 time could lead to contracting the virus. Should I continue to wait until three months before drawing final conclusion or I could still be infected and antibodies not present.