Genetic pre-disposition...?

My mother died of ovarian cancer 3 years ago, and recently my fraternal grandmother was discovered to have cysts on her uterus. I am only 15, but i am still concerned as to my chances of having problems with my lady-parts at some point in the future. I would ask my doctor, but I have no way to reach him without talking to my dad, who will tell me not to worry. please, any information is helpful