Two days is fine for gonorrhea testing. It's a bit early for chlamydia. However, you weren't at risk for chlamydia, which is rarely if ever transmitted by oral to penile sex -- and the negative result is of course valid if you had been infected sometime further back. So the negative results will be valid and should not have any more testing.
Thanks for the reassurance. I have one final question. About 48 hours after the event I went in for a urine test for Chlamydia and gonorrhea. Were these tests premature? Could this result in a false negative, if so when should I get retested?
There are rare cases of asymptomatic urethral gonorrhea, and no distant expert can guarantee you didn't catch gonorrhea or one of the other STDs noted above. But I can tell you that if I were in your situation and had no symptoms, I would not be tested for anything and would continue unprotected sex with my wife without fear of transmitting anything to her.
Thanks for the prompt response. If i read your post correctly, if i have no symptoms of gonorrhea in 2-3 days, it's not worth getting a STD test?
Welcome to the forum. Thanks for your question.
Apologies for MedHelp's overly conservative blocking software. It shouldn't be necessary -- but in any case, the context indicates you're talking about oral sex. To your specific questions:
1) Oral sex is low risk for all STDs and zero risk for some of them. (The tongue-scrotum contact is irrelevant -- zero risk.) There is little or no risk at all for HIV, HSV-2, hepatitis, and chlamydia. Syphilis is possible, but it's so rare in heterosexuals in the US (including sex workers) that it isn't a serious concern. The three main STDs from oral sex are gonorrhea, nongonococcal urethritis (NGU), and herpes due to HSV-1. Even for these, the chance of infection is very low.
2) With wuch a brief exposure, your risk probably is even lower than most oral sex events.
3) If you develop no symptoms, testing is optional. Of all the STDs mentioned, the only one worth considering is a urine test for gonorrhea, which is valid once 2-3 days have passed.
4) As noted above, herpes due to HSV-1 is possible. However, the odds of it probably are under 1 in several thousand. You really needn't worry about it unless you develop symptoms (painful penile blisters or open sores, or maybe painful urethral discharge) within the next couple of weeks.
I hope this has helped. Best wishes-- HHH, MD