One option would be to get tested for HIV after the three month period. An infected person could still pass it on, since the virus is hiding in lymph nodes, even though the viremia is lower. This person can readily transmit the virus to an unprotected partner. Louise went on to discuss exposure . The first issue is type.
Exposure can be insertive or receptive.
It can be penile, vaginal rectal or oral. Comparing penile, vaginal and rectal exposure, the issue is the amount of time that part of the body is exposed. Infected fluid can stay in the vagina for up to two days. The second issue is number of exposures. A higher number of partners where no protection is used clearly increases the risk.