One thing that you must understand about the pcr dna and elisa, is that in pcr dna , you check the viral load and in elisa, you check the presence of antibodies.
So, the subjective issue of time and presence of virus in the blood could slightly vary in infected individuals.
Because, viral load goes to a very high limit, only when the body is not able to produce enough antibodies. This happens mostly, when people recognise specific symptoms related to hiv and an early progression towards aids. Otherwise, the viral load may not show up in highly serious quantities.
So, pcr dna test is always the 2nd choice for testing once the elisa shows up positive.
I would rather advice you to leave your worry and wait for your window period to complete and go for a elisa and repeat the elisa after a 2-3 month gap.
Dont take your worries to a disease. Symptoms are never a positive approach to decide if you are infected or not.
Thank you and god bless
kiklis2k