Do I have an STD?

So I’ve only had sex once, but it was with someone who has had sex a tonnnnnn of times. Like he has had sex with A LOT of people. We were unprotected for probably 2 strokes, then he put a condom on for the rest of it and he came in the condom. Some people think that he has STD’s and I’m wondering what the likelihood is that I have one? We were mostly protected and we had sex in July, so 8 months ago. I’ve had no “symptoms” but I know that a lot of symptoms can stay dormant for a long time.

Thanks in advance!