Hello, I have a few questions regarding HIV testing accuracy. I had a high-risk exposure on March 5 of 2017. I tested negative 4 weeks post exposure with a rapid finger test given at a local clinic. The same test at the same clinic yielded a negative result 10.5 weeks post exposure. I was told to go back aftee that for a final 12-week test, but the lady who administered the tests retired, so the clinic stopped offering the service for free. I trusted that the results were accurate since I was so close to the cutoff date and was only 22 at the time. Did I make a mistake? I remember the results coming back abnormally quickly the last time I took it (and I think it happened twice). Should that be a cause for concern?
In any case, I have not had unprotected sex since then. I took an Oraquick at the beginning of October 2019 and got a negative result. I cannot remember if I ate or drank 30 minutes before the test. It seems unlikely that I did, but assuming that were the case, would this invalidate my negative result? Should I buy another one?