Q: I had a possible exposure in August 2010- unprotected receptive anal. Im a female btw. At 5 and 6 1/2 months I got tested for all STI’s. All results were negative. My main concern is HIV. Do I need to test again? P.s. I had no exposure since that night.
Since you got tested twice, and your results were negative both times, I would feel pretty confident in your results. You also got tested after 6 months, which fully covers the window period for HIV (the time frame in which the virus can’t be accurately detected by a test – for HIV it’s 3-6 months). In your case, I would let go of the stress and start enjoying safe sex again.
In general, when you are sexually active, you should get tested for STIs every 6 months even if you use protection – that way, you cover all the window periods of the different tests. People sometimes choose to get tested every year, or even less often, if they have one partner and they’ve agreed on a monogamous relationship. In your case, it sounds like you’ve got your bases covered for that one situation, and you could consider getting tested regularly (e.g. every 6 months to a year) in the future. You can also stock up on free condoms and lube at Head & Hands (and most other clinics), to further protect your health!