I'm not sure what a "message girl" is, but I'm going to assume that means she is a sex worker/prostitute. While your risk is actually pretty low, the fact remains that the condom broke and that IS a risk.
I recommend that you test at 28 days post this exposure with a 4th generation DUO test. You stated that apparently at the time you had sex with this woman, you did not have any STD's......unfortunately, you might now. I also recommend you test for those too.