I had an anonymous encounter with a guy who performed oral sex on me. He was a little rough on the teeth, and bit a small piece of skin off my shaft and it bled. When I saw what he did, i asked him if he was clean, and he said he was. The next day, I started to have discharge and burning while peeing. I went and got antibiotics for Chlamydia (Doxycycline 2x a day for 7 days) and Gonorrhea (One tablet of Suprax) from the doctor.
My question is... if this guy was HIV positive, what are the chances that I could have contracted it from this encounter?