Sex hurts

Guys. I recently had sex for the first time and it hurt so bad. It was with my bf and his dick is pretty thick and I’m pretty tight but idk it hurt so bad and every time since then it’s hurt. Like if I just push through I can get to the point where it doesn’t hurt as much and feels good but if he try’s to go faster it hurts so bad. I don’t know what’s wrong. Does anyone know what to do? Maybe I need lube?

Update: tried more foreplay like suggested and made sure I was super wet first and it barely hurt at all. I also drank a water bottle of water ahead of time to help me get wet easier and I think it really did help.