What is the right time to take HIV PCR qualitative test? I have taken it after 4 moths. It showed negative. I also took HIV ELISA test after 4 and half months. It also showed negative. But I have been suffering from various problems and have taken various STD tests. Everything showed negative. Im a person with weak immunity power by nature. I strongly believe that, still Im in window period. Is it true that the HIV will be detected by the HIV Elisa test after 6 for people with low immunity power? If I go for HIV PCR quatitative test, will it be confirmatory test to identity, that Im infected by HIV. My health is getting bad day by day and I want to take the HIV treatment immediately. Your comments will be highly appreciated.