My exposure happened on 5th september with prostitute where my condom broke and I took pep within 72 hours and after completing pep I took rna pcr test on 23rd oct (48th day from exposure and 17th day after complete pep) test result non detected and after few days in december (104th day from exposure and 74th day after pep completion) I took western blot all bands are absent. And on 26 january I took hiv duo combo after 143 days after exposure and 118th day after pep completion test result came out negative. Now my question is am I hiv negative? And pep stop seroconversion for a while? Or antigens not detected due to pep? Or its conclusive?