1.) Is it possible I got chlamidia from someone else (not her) and just started showing symptoms coincidentally few days ago? My prior last sexual encounter before her was with a girl on July 29th (protected sex but had unprotected oral sex). I took a 4th gen HIV blood test on 9/20 and it came back negative and took another 4th gen hiv blood test on 10/23 (35 days after most recent exposure) and was negative.                    2) What are chances I have hiv from this recent encounter and do u think the girl was lying about her being clean? Idk how I could have gotten chlamyida if it was not from her. Please advise. Thanks so much. I’m super worried I have hiv.

First answering the implied priority of the title you chose, "HIV possibility": Almost zero risk. I'll bet not 10 people in the US catch HIV each year from such an exposure, and your negative AgAb (4th generation) blood test results are nearly conclusive. For final reassurance you could have another such test at the 6 week mark. There is almost no chance your partner is lying about her HIV status. The chlamydia issue is the far more important one.

She also probably is being truthful about her chlamydia result. However, she definitely needs treatment, as do you. (Presumably you've been treated, right? With doxycycline for 7 days, I hope.)

It's fairly common for chlamydia to show up in only one person in a couple when almost certainly both are infected. There are several possibilities. Perhaps you were infected by some previous partner, maybe months previously. (It would help to know if you had symptoms like penile discharge before you were diagnosed.) In that case, maybe she was infected but the test wasn't yet positive. Or the test missed her infection; the tests aren't perfect. Or she took an antibiotic active against chlamydia, for some other reason. In any case, she either was the source of your infection or you had it first and exposed her. Either way, she must be treated with doxycycline, and preferably should be tested again before treatment.

Retuning to HIV, there is under one chance in millions that either you or your partner have it. But do go ahead with another AgAb test ("4th generation") next week, i.e. 6+ weeks after the Sept. 18 exposure date.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

I can't say more than I already have about HIV. Re-read my comments above and have another text next week. Maybe it will also help you to know that in the 21 years of this and our preceding forum, with thousands of questions from people worried being exposed to HIV, none has yet turned out to be infected. You will not be the first. If and when it finally happens, undoubtedly it will be from a genuinely high risk exposure (think unprotected anal sex between men with hundreds of partners) and without false negative test results prior to the positive test. Suck it up and and believe it.

 I attached picture of wording on quest diagnostics of my test I took on 10/28 that is in status in progress. It initially said hiv 1/2 antigen/antibody, fourth gen w/rflx” on the result screen but 2 hours after me giving my blood sample it changed to the wording below: 

Then attached is test from 10/23 which the result came back negative but the wording of the test is different. 

1. I bought the same exact test from quest both times. Is this rephrase in wording not at all alarming? I take it as they r doing confirmation testing to confirm the positive result. Could you advise your professional thoughts and could I let you know when the result when I get it back? 

Why didn't you tell me of your test results before now?? Depending on timing of the tests compared with your last possible exposure(s) those results should be very reassuring.

That completes the two follow-up comments and replies included with each question and so ends this thread. Please do not post another question here until and unless you have seen a doctor or clinic about this situation. At that time, and only then, we might have further comments about your situation. In the meantime, do not be worried. It is very unlikely you are infected. I hope the discussion has been helpful.