Advice Needed!

Hi, I just had a gay anal sex last night with a guy I met in a gym. In fact, I went over to his place to do it. We did unprotected oral sex to each other. However, he inserted his penis into my anal for like 3-5secs without a condom as I thought he would wear a condom before that but he didn't. Right after that, I told him to wear a condom and he did. Then we continued the sex after that.

I did *** on his body and face and probably got into his mouth as well. But I didn't have any exposure of his *** into my mouth or anal. I do know anal sex plays the highest chances of getting HIV or STD. For this instance, what's the exposure like?

I did ask him whether or not he's safe and of course, he told me he's 100% safe as he does HIV test every 3 month. But, from the conversation I had with him, he seems like a very open-minded guy in term of sex. He's attached but he's still playing around with other guys. Thus, this has caused me to worry about myself.

Can anyone please let me know what should I do?

[Teak]

You will need to test not only for HIV but other STDs. As you already know 3 months is when you can obtain a conclusively negative HIV test.