Geez... what do I do?

Ok, so here's my dilemma. I'm 14 years old. I got with a girl who I'm now going out with and let's just call her Emma. So I'm like feeling like this girl is perfect. Except two points, one that had been nagging me since we got together, she's in a grade lower than me and I get s*** about it everyday from my fellow 8th graders. It's getting so annoying and unbearable. Another thing is something I found out a little bit into our relationship. She isn't a virgin. She lost it when she was 12 to her then boyfriend because apparently he just wouldn't stop pressuring her. So since she has this reputation as a slut, everyone is expecting me to get a ******* or to have with her. I'm fine with the first, but I don't want to have yet. I just can't deal with the pressure from my peers to get that bj. Now ever since I found out she isn't a virgin it's been haunting me. And Summer is coming up. We've been through so much together, and I've never felt the same way about her than I ever have anyone. If she wasn't so special to me and we didn't click so well I would say let's break up. I really want to have some things with girls over the summer too, but I don't want to let go of her. I don't want to let go and then think what could have been. All of the peer pressure, haunting of her not being a virgin, and the impending summer is so overwhelming. On the other hand, she's amazing, and if summer wasn't coming up, I wouldn't think of breaking up with her. But it is. I just need some advice. This is really nagging at me, and don't have much time to make a decision until I have to leave it up to life to decide for me. Thank you.