Help!

So, i recently had sex on Saturday, unprotected. In the middle of sex. I became super dry and it began to hurt. We still continued. The next day i woke up and i was kind of itchy down there, and in pain. I thought it was from being dry (this has happened before with previous and past partners)

The itching got worse. But i didn’t have any abnormal discharge or anything. And i got my period yesterday.

I bought OTC yeast infection cream and this morning i woke up without any itch or pain. I was fine all day until i used day two of the cream. Which now I’m slightly itchy.

Also, usually my bleeding is REALLY heavy and now, it’s super kind of light and a pale red. I have a question but before i ask, i must admit that I’m an extreme hypochondriac lol

But, i was wondering if in anyway i could have an STD?

Does yeast infection cream relieve std itch?

Like i said earlier, i had itching, that went away/calmed down after using OTC cream. There’s absolutely no smell (even now with my period).

The guy I’m with swears he’s clean (which i do believe but I’m really skeptical about everyone lol) but yeah. Help me! Lol