Deathly afraid of pelvic exam; want to start using BC

I'm 15 years old and have really bad period pains. I want to start to use birth control regulate and help with period pains. My mother has been pushing me to go to the gyno. I really really don't want to because i'm scared of being forced to have a pelvic exam. I am not sexually active and haven't had any problems down here. I have done a lot of research on if they can force you to have a pelvic. Some people say that they can't force you when others say they can, even to the point of sedation. A lot of people say is no big deal to have a pelvic exam. I'm just very very uncomfortable with the thought of it. :crying: Does anyone have any advice? Can they physically force me to have a pelvic? Do I really need one, if I'm NOT sexually active and never had problems down there and only using BC for period related things? Are pelvics really need at my age? Please help I'm really scared. I have never missed a period before either.