Teenage Girls: I've got a big problem, I need your help?? (sorry, pretty long)?
i would say don't call her, i know it will be hard for you because you love her so much and want her to know that but she already knows you love her and you would just be pressurising her even more. if because of you she then didn't do too well in exams she might blame it on you and then things would ge even worse. let her study, when she is done she knows you are waiting for her so i'm sure she will contact you.