Welcome back to the forum. You were one of our earliest customers after moving from our previous online forum to this one over 7 years ago -- question no. 97, as we approach 10,000 (as well as another question 6 months later). Thank you for your continuing confidence in our services, although of course I'm sorry you found it necessary.
The main discussions back then were about the absence of significant risk of HIV from exposures other than unprotected vaginal or anal sex, including the very low chance of HIV from oral sex. There still has never been a scientifically proved case of HIV transmitted oral to penis, and based on how some people believe they were infected (whether or not it's true), CDC calculates the risk at one chance in 20,000 if the oral partner has HIV. That's equivalent to receiving BJs by infected partners once daily for 55 years before infection might be likley. And that's only with known infected parteners and it's great to learn you've apparently been protecting yourself appropriately. So we can dismiss your oral sex exposures as carrying significant HIV risk.
So it is appropriate that your main concern is the missing condom after vaginal sex. Since you obviously were careful about placing the condom before sex, probably the condom remained in your partner's vagina when sex was complete. In that circumstance, protection is believed to still be complete. While of course I cannot say whether that event was in fact not condom protected, probably you would have noticed if the condom had come off before intercourse was completed. And even if not, the average chance of HIV transmission by vaginal sex -- again, this is IF the female partner is infected and not on anti-HIV treatment -- is around once for every 2,500 exposures. And despite your partner's having "gone quiet" in response to your questions about her HIV status, most likely she doesn't have HIV, so your risk would be correspondingly lower.
Your negative results with both RNA and AgAb (4th generation) testing at 17 days are around 90% reliable. Your plan for another AgAb test at 4 weeks is a good one. You definitely can expect it to be negative, which will be conclusive proof you did not acquire HIV. (Since your previous questions all those years ago, we advice conclusive testing with the AgAb tests at 6 rather than 4 weeks. But that's for AgAb testing alone: the combination of negative RNA at 2+ weeks and negative AgAb at 4 weeks is equally conclusive. There is no need for another RNA test.
You don't mention testing for other STDs. I would recommend it if not yet done. Unprotected oral risks gonorrhea, and both chlamydia and gonorrhea are risks from the vaginal sex, if the condom was off during intercourse. And syphilis is always a potentially serious concern. Absence of penile discharge and chancre (syphilitic ulcer) by this time is strong evidence you have none of these, but testing is the only way to know for certain. So if not yet done, I recommend a syphilis blood test and urine gonorrhea/chlamydia test. You can have these when you have the 4 week HIV test.
I hope these comments are helpful. Let me know if anything isn't clear.
HHH, MD
---
---
---