Unprotected sex

[Discreet123445]

Today I had anal sex with another dude. I was the top. During the intercourse the condom broke. Instead of putting a new one I penetrated him condomless. It was for less than 2 minutes. I did not ejaculate inside him nor he had any cuts or bleeding in his anal area. When i pulled back after 2 minutes I didnt find any blood or something to worry about. Last time he tested was one month ago, it was combo and was negative. In 2 days we are going together to test. He assured he is negative and that there is nothing to fear.
If he tested exactly one month ago for hiv combo and was negative, is it possible in the one month period he have contracted hiv and i could be at risk? I am very careful and this ks my first time penetrating another dude without condom. Ive known the guy for 2 weeks.
What is my risk? And what should i do?

[CurfewX]

A one-time unprotected encounter with someone HIV+ is very low risk (0.11% for circumcised top, 0.62% for uncircumcised), so keep that in mind.

Unless you know for sure that your partner has not had unprotected intercourse since his last test, his test won't mean a lot to you.  If you are confident he hasn't had unprotected intercourse since his last test, then a negative test in 2 days time means he was not infected at the time you had intercourse with him.