Heterosexual Man Worried About HIV Risk After Unprotected Sex
I'm an Australian heterosexual man. I recently met up with a woman I had previously had protected sex with. This time, however, we had unprotected vaginal sex.
About 5 days later, I experienced some burning when urinating, so I went to the doctor and had an STI screen, including urine and blood tests. Everything came back negative. My doctor said I can do a repeat HIV/blood test in about a month if I wanted to do it within the proper testing window, however they said that, based on the circumstances, my risk was low.
Despite this, I've become extremely anxious about HIV and it's been causing me a lot of distress. I understand that HIV prevalence is relatively low in Australia, particularly among heterosexual people, and that the per-exposure risk from vaginal sex is also relatively low. But I'm struggling to stop worrying about it.
I'm mainly looking for some perspective from people who are knowledgeable about HIV risk in Australia. How would you assess the actual risk from a single episode of unprotected vaginal sex in this situation?