What birth control do you think i should use? or is better?

Well for starters I am 12 I know I shouldn't be thinking about that kind of stuff but it's I fear my furture actions and besides my mother was the one who brought this up because my menstral cycle had not came at all that month and she was freaking out so she was asking me in spite of taking precaution do you ever consider getting birth control? Because she didn't want to be putting un-neccesary hormones in my body so I just laid out how I felt about it and came to the conclusion that I wanted to get it but I have yet to be put on it we were suppost to schedule a appointment but we don't know if the insurance covers that I also have been having un ordinary discharge so I would also like answers on that thank you and I really don't want any rude or negative comments its my sex life and what I choose to do is my choice so thank you for your time