HIV anxiety

So i was a receptive side when i hook up with this guy. We used condom, lube and everything was okay. Then when we was at missionary position, he pull out, removed his condom and came on my thigh near my anus. I'm worried some of the sperm might went on my anus and or even entered my anus (as my anus was still opened after the penetration) What are my chances? Here in my country HIV testing is very stigmatized, you come for test, and they will mock you and treat you like the most bad sinner in the world. I usually do test by donating my blood to the blood bank, where they tested donated blood for STDs, and if any finding they will discard the blood and call the donor privately. Thankyou 🙏