Any chance of seroconversion after 3 months for HIV? In which all cases does the waiting period be extended to 6 months?(Cancer drugs, suppressive immune system) I had my unprotected sex with a CSW Before 3 months, tested antibody test for HIV 1 and 2 at 90th day which came as negative? Is this test conclusive or should I test again at the end of 6 months? Any chance of seroconversion after 3 months? Any such experience for any doctors in Lybrate?