If you were her first and only partner, and she was your first and only partner, there was ZERO need to test for HIV and STDs. They don't spontaneously generate when two people have intercourse. However, I am sure it has put your mind at ease now that you know, for sure, that you are both negative.
well we both got our results back and we are all clear
Bummer. Condoms do break from time to time but once they do, yes. That's a risk. You, as Chima says, will need to test and I'd use a 4th generation DUO test at 28 days. However, know that a one time anal sex exposure is low risk of less than 2%. So, it is still unlikely you got HIV from this but it's an actual risk so you will need to test to make sure.
If your condom broke then that is a possible risk. You should test with a 4th generation ag/ab test after 28 days past the event for a conclusive result.