You don't say the "direction" of the oral sex event:  your penis in his mouth or vice versa? But it probably doesn't matter much. Oral sex is safe sex in regard to HIV. There has never been a proved case of HIV transmission mouth to penis, and only rare cases penis to mouth. One calculatio suggests the average risk is 1 in 20,000 mourh ro pwnia nS 1 IN 10,000 in the other direction. That's equivalent to receiving BJs by infected partners once daily for 55 years before infection migh be likely; or giving BJs to infected men once daily for 27 years. In other words, zero risk for all practical purposes.

In addition, I agree with your doctor. The combination of negative HIV PCR and antibody at 23 days is nearly 100% conclusive. For truly 100% conclusive results, have an antigen-antibody (duo) test at 5 weeks. But in the meantime, no worries:  there is no realixtic chance you have HIV.

I hope this information is helpful. Let me kow if anything isn't clear.

HHH, MD

It was both insertive and receptive

Thanks you

For the most commonly used HIV blood test, the antigen-antibody (AgAb test, also called "duo" or "combo" test), it takes 6 weeks for conclusive reesults. Having had probably that test PLUS the PCR test at 4 weeks, the chance you have HIV is under 1 in a billion. That's zero for all practical purposes, which probably is why your doctor said the results are 100% reliable.

If you remain concerned or uncertain, you could have another AgAb test 6 weeks after the exposure. Or discuss it again with your doctor:  I'll bet he will agree with my comments. (You could print out this thread as a framework for discussing it.)

Zero for all practicle purpose mean that it would be a extraordinary case thats plausible but almost impossible, just to fully understand

That concludes two replies to follow-up comments, and so ends this thread. I hope the discussion has been useful.