Well, first of all, yes, birth control will control your period and minimize your cramps. Definitely. Many women take it for that purpose.

I'd have a heart to heart with your mom- tell her how you feel, that you really do just want it for the cramps and you've heard it helps. Because it does!!! She's just worried because she wants to protect you. But if you really sit down and talk with her about the real reason you want it, she'll come around. Just focus on the stuff you just said, that you get really weird periods and horrible cramps. It might take you a while but she'll get it.

Good luck!

ALSO...

You do NOT NEED YOUR MOM TO GET BIRTH CONTROL.

You can go to the doctor and get birth control without her consent.

You are also technically allowed to have other services such as abortion, std testing, etc.. Without her consent.

Planned Parenthood is EXCELLENT for teens, because they often offer FREE or low cost services, THAT WAY your parents insurance does not have to be used.

IF your mom will not understand, you have to do what is best for you.

my first form of bc was depo..loved the fact of never getting periods...after i was on the for 3 yrs i switched to the pill.....ever since i was on the pill my periods are heavier then before i was any bc....i hardly ever get cramps tho, and my period usually comes rite on time every month....about ur mom, she should want to protect u not make u scared to talk to her....on bc or not ur going to be having sex, she should want to protect u from having kids a young age....the only thing that ur mom is doing is making it harder to talk to her when u are having sex....good luck....there is also PPH tho