read this... it will help you:
http://www.thebody.com/Forums/AIDS/SafeSex/Archive/Testing/Q186485.html
4 weeks is not a conclusive sign niether is a 6 week negative but it is a good indicator according to experts. 12/13 week mark is a definitive result.after you test on the 3 month mark experts say it is conclusive. testing beyond the 3 month mark is always open for you.
Good luck
Joe
yes it's, but conclusive test will be at 3 month
4-6 weeks test is pretty reliable...
Another problem happened when I met a psychologist during tests who said that he knows a lot about HIV and from authentic sources and there is by no chance that antibodies can be detected in the blood before 1 to 3 months....is it really so??