I am a male who has had one encounter of unprotected vaginal sex with a sex worker since then i have taken a duo anti gen antibody 4th generation test 16 days after exposure i understand that this is not conclusive and i must be tested after 3 months but for the sake of reassurance how accurate is such a test after 16 days in terms of percentage? I am constantly worried and i have acquired all the HIV symptoms possible 5 weeks after exposure your help will be much appreciated.