Chances of HIV exposure?

[jj0322]

While I was having sex with a guy, he inserted his penis into my anus without a condom once, and I immediately asked him to take it out. He then put on a condom before we continued intercourse. After intercourse, I saw trace amounts of blood on the condom, and I assume it's due to a tear in my anus. Although he says that he is HIV- and had his annual physical done 2 months ago, I will assume that his status is unknown. His penis had no visible cuts. What are the chances of contracting HIV if he indeed had it?

[CurfewX]

Chances are very low from such a brief exposure, but not zero.  Just get a 4th generation (Ab/Ag) test 4-6 weeks post-exposure, and you'll know for sure.