TMI painful sex at 14

Ok so I'm 14 and my boyfriend is 15 and we had sex for the first time yesterday. I was a virgin before this and oh my god it hurt so much. I'm gonna be honest his dick was soooo much bigger than I expected and it hurt so much. Like it took him ten minutes just to get half way in. He couldn't even fit all the way in. I told him it felt good because I didn't want to hurt his feelings. He says he wants me to sleep over tomorrow night because his parents aren't home and I'm worried that if we try to do it again it will hurt. It aculy felt like my vagina was tearing apart.