###Human: Kindly explain the tests and precautions to be taken for HIV after unprotected sex. ###Assistant: Hi. As I can see that the episode is recent in time, I would suggest you use post-exposure prophylaxis (PEP) as early as possible within 72 hours of exposure. The chances of HIV transmission are related to the status of your partner and viral load of partner (if she is positive). In general, transmission is very low that is 1 in 10000 contacts with protection, as I can see that there is a break in the condom, it is wise to start PEP. You need to wait at least two weeks for the tests and you can get fourth generation HIV test and DNA PCR test for confirmation.