I am from Germany, and I made a foolish mistake & went to a CSW during my trip to Warsaw. I had protected oral and protected vaginal sex. I read many posts and assured myself that protected oral is safe.

However, I am bit worried because during intercourse the condom may not be covering the entire penis and left the bottom shaft exposed. The intercourse lasted about 3 minutes. The head and skin portion below head was covered & condom was intact upon withdrawal with bottom quarter exposed . The girl says she is clean as she tested for HIV. But, I am still worried about Syphillis, Herpes & Hep B/C which she isnt aware of. It has been more than 2 weeks,  and I dont have any lesions on penis. So, I would like to ask that can I consider myself safe if I don't have symtoms for the next 2 weeks in regards to Syphilis, Herpes & Hep B/C? I am planning to take the test for all STI incl HIV on day 26 after exposure. Is it safe to resume sex with my wife? Are tests on day 26 with no symptoms assuring enough to forget everything? I was not vaccinated against HBV. Would you recommend it if I received negative results on day 26?

In 2020, I had negative results for HBsAg, HBsAb, HBcAb. So, does now a HBsAg be sufficient at any day after 2 weeks of exposure or at 26 days to know that I never got HepB? Is neg Syphillis test with no symptom on day 26 definitive? Is HSV 2 with no symptoms after 2 weeks assuring? 

Condoms also greatly reduce but, do not entirely eliminate the theoretical risk for Lesion STI’s such as herpes, and Syphilis.  If you were going to develop herpes lesions, they would’ve occurred by this time. Recently acquired herpes lesions appear within 10 days of exposure in virtually all cases. Syphilis is a far river disease but takes longer to appear if it is going to appear. On average syphilis lesions take about three weeks to appear. Despite this theoretical risk however your risk for these STI‘s as well is virtually zero.  Most exposures to infected partners do not lead to infection and condoms dramatically reduce any risk for acquisition. The fact that you were kind of slipped down slightly only minimally increases your risk for acquisition of herpes or Syphilis. Personally, I would not worry further at this time.  Test results for Syphilis at 26 days while strongly suggestive do you have a tiny risk of becoming positive later. That risk is so low that when your test is negative, as I expect it will be, I would not worry further about Syphilis. Regarding herpes testing, we strongly recommend against blood tests for herpes. These tests are in accurate both missing infections and providing all too frequent false positive results.

I hope the information I have provided has been helpful. Your risk of having acquired any STI from the exposure you describe is vanishingly low. I would not be concerned about having unprotected sex with your wife. EWH 

I sincerely thank you for your prompt response. Your advice really helps me to take off the anxiety off my head. I will post my results when I get tested.

I would also like to ask your opnions about HBV vaccine. Should I take it now or wait upto certain time after this exposure. I am personally more interested in taking it now. I was never vaccinated as a child.

Also what would be your advice regarding HBsAg or panel testing. Does HBsAg now or at day 26 assuring enough to not worrying about it?

Regarding testing for hepatitis B, most clinicians would use the entire panel, not just the antigen test when screening for infection.  Strange things occasionally occur and the entire panel facilitates interpretation.  EWH