I am homosexual and I do not use condoms ...

I am homosexual, and have had sex for six months with my boyfriend without a condom (I am active). In these relationships, I ejaculated inside my partner's anus. Two weeks ago, he took the anti-AIDS test and gave negative. I have not done it yet. My question: Am I at risk of being infected, if my boyfriend is not, considering the window period?
Expert answer:

Maybe, the immune window is 4 to 6 months if one two is still in this post-contamination period you run risk yes.