Hi. I live in Ontario, Canada. I had unprotected sex with a girl who I did not know 3 months ago and I started getting symptoms like white tongue, swollen lymph node on neck, fever. And I have been having body aches since then. Today I had a PCR HIV test result which came back negative from Public Health Ontario, but I have some questions about that. First, is PCR test conclusive after 3 months? I heard that PCR test is not the right one for screening, is that true?