I am an in a long term relationship with someone who I will not be seeing for a month or so. Earlier this year (> 6 months) I had unprotected vaginal and anal sex (separate occasions so no cross contamination potential) with a married woman who is in a monogamous relationship. Before entering the relationship both partners were checked for STIs and given a clean bill of health. Within the past week I have engaged in mutual masturbation, limited fellatio and brief unprotected vaginal penetration (a few strokes then the realisation that I did not want to do what I was doing and withdrawal) with another married woman who again is in a monogamous relationship but when tested 7 years ago pre marriage was all clear.

My logical brain says that the last encounter is harmless and that the previous encounter was likely harmless. But the guilt ridden part of my brain refuses to accept this. So I am planning a full set of tests before I next see my girlfriend. The question is whether to wait until 28 days and go for a DUO or whether just to have the antibody test?

[Dr Jose]

Hello,
Thank you for your post and welcome to our forum.
I am afraid theat any unprotected sexual intercourse would involve risks of STDs, including HIV. However your sexual encounters are low risk for you from the point of HIV, and a simple antibody test might suffice. The only problem here is that if you want to have complete peace of mind, the only way to have a final and fully conclusive test result that would cover both sexual encounters would be to wait 4 weeks from the last one and have a Duo test, as you mention that there was some penetration, even though brief.
Best wishes,
José

I'll go for the duo then - thanks