Who knows what happened before those dates. 3 months post exposure for a conclusive result. 6-8 weeks for a very good indication.
You had unprotected sex...unless you do so with a virgin then you never know what happened before you.
Vance2335. Thanks. The point is that for sure he didn't had sex with her from 21st july to 3 sep. And she too didn't had with anybody from 21st July 2010 till 2sep(with me). Her husband tested negative on 6 sep. am I safe?
If he was truthful then no, but he is having sex with others and so is she. I would recommmend you test 3 months post exposure and use condoms.