Dear Dr's, After having possible exposure i have tested HIV 1 DNA PCR on 78,94,110 days from Metropolis Lab  : Result was not detected I have tested on 110 days from Metropolis Lab with hiv1 RNA qualitative detection : Result was not detected I have tested with 4th generation on 78,88,94,105,110,126 days with p24 and antibody and result was negative But on 126 days i took western blot from SRL lab and result was indeterminate with p24 weekly band seen and after that i quickly took hiv 1 viral load RNA quantitative and result was not detected . Why intermediate happed in western blot rest all PCR were negative also 4th generation tests are negative .? Please suggest me