There is very little risk here.
The only risk you might have is from herpes, syphilis and HPV. Condoms offer significant, but not total, protection against them.
The symptoms of herpes usually appear within 2-12 days. Tests for this are hard to get in the Middle East, which is really okay in this situation. You can get a test if you get symptoms, to my understanding, but the blood tests can give false positives.
Syphilis sores appear between 10 and 90 days, but the average is 3 weeks. You can test for this at 6 weeks. It's uncommon in most developed countries.
HPV symptoms, if you get them, can appear several weeks later. There is no test for HPV for men.
Please remember that guilt doesn't equal risk.
Hi. Just to clarify my badly worded post. As far as I could see the condom did not slip and did not break