Worried/confused

Hey guys! I have been with a guy and i have some questions. I dont really have anyone to ask so here i am...

So i gave this guy a bj and he went down on me, but at a certain point his penis (without condom) touched my vagina. Should i get worried? Ik we shouldve used protection to prevent stds and others but it just kind of happened. There was no penetration but i am still pretty worried tbh. Sorry if this is stupid or something. Hope i didn't cause too much trouble.