2) P24 Antigen is almost always present in the body after acquiring the virus till the 4th week after infection and then it disappears .
3)Once the P24 antigen disappears,antibodies starts to show up.
4) ' Fourth generation ELISA for HIV1/HIV2' detects both P24 antigen and antibodies 3 weeks after the exposure.
5) HIV DUO test is said to be best at 28 days and 6 weeks after the exposure.
6) Fourth generation ELISA test sensitivity is >99.5% and specificity >99% to both B and non-B subtypes. If a person has taken the test at the 6 week post exposure.
So I recommended you to do 'Fourth Generation ELISA for HIV1/2' i.e HIV DUO test 6weeks after the exposure.But 12/13 week testing from any generation of ELISA is compulsory.
A negative results on 6 weeks by 'Fourth Generation ELISA for HIV1/2'
would mean that you would have extremely extremely....extremely low chances to be HIV + in 12/13 weeks .
Play safe .Always use condoms while having sex.I am not against having sex but we must responsible while enjoying it.
Always use condom properly and never share needles.