He’s small

We’ve been talking for about six months, we did it and I found out he’s small I’m so upset 🤦🏻‍♀️ I didn’t wanna back out last minute I felt like it would’ve made our relationship awkward after but I’m so embarrassed and uncomfortable I don’t want to have sex with him anymore I didn’t even enjoy it. Should I just stop talking to him ? Should I tell him I wasn’t satisfied ? This never happened to me before idk how to act