Sex hurts??

Okay so I’ve only had sex with 2 guys and the first one, we only fucked once. I assumed it only hurt because I was losing my virginity, but now when my current boyfriend and have sex it still hurts sometimes?? when I finger myself it doesn’t hurt at all though. he does have a big dick so if it’s big enough does sex just hurt sometimes orrrrrr?? help 😅

Update: yes, we use lube. A LOT of it. It’s still painful