First of all, let your mind calm down. Nowadays, college students are immature and curious about sex, and often can't stand the temptation. Although premarital sex is not advocated, we should also understand that this is not a heinous thing. So you should calm down and don't worry too much, otherwise your studies and your relationship with your boyfriend will be frustrated.

Secondly, I suggest that you can learn more about sex through the internet. There are many reasons for bleeding, not only hymen rupture, but also graded rupture. And according to your description, even if it is broken, the possibility of successful repair is very high, so don't be too stressed. You can go to a regular hospital for a physical examination to reassure yourself.

Finally, I suggest you strengthen your will. Don't take risks easily if you are afraid of secular pressure. To tell the truth, the vast majority of boys in universities are still brought up by their parents. They can't give you any promises, and even if they do, they are just talking. The boy will say that he won't force you, let you slowly and actively throw yourself into his arms, and be rational.