Presumably your NGU symptoms cleared up entirely after the event discussed with Dr. Hook last month. (Just to be sure you understood his comments, that was definitely an STD. But you had the correct treatment, so if your symptoms cleared up and didn't return, all is well.)

As for this event, cven when women have active STDs, they aren't transmitted during most exposures. And the brief duration of exposure after the condom broke reduces risk. And unprotected oral sex is also low risk for all STDs and zero risk for some. So testing after this event is optional. Since you're anxious about it, though, you should be tested for reassurance. The main risk is for gonorrhea or chlamydia, and you can have conclusive urine testing for those any time 3-4 days or more after the event, so I would suggest you do that toward the end of this week. If you also want assurance about HIV, an antigen-antibody (duo) blood test at 4 weeks will be conclusive. For syphilis, conclusive testing has to wait until 6 weeks. However, the chance of either of these is almost zero, especially if you don't develop a painless penile sore suggestive of syphilis.

The only other STDs to keep in mind are NGU (again) and herpes. But if you have no penile discharge, painful urination, or blisters/sores in the next 10 days, these infections will be very unlikely. Accordingly, you could safetly resume sex with your wife in about 10 days, assuming no symptoms before then and negative gonorrhea/chlamydia testing. But the odds are very strongly in your favor:  I expect all these tests to be negative.

I hope this information has been helpful. Let me know if anything isn't clear.

HHH, MD