Question more or less birth control and period.?

what could i tell my mom that i have with my time, for her to get me birth control.
i would want birth control for incase i have sex, but she would FREAK out if she thought i was going to start have sex.
so what would be the best excuse for my period?
similar to cramps? or two a month, or just that its really indigestible?
thanks! a moment ago say you want to regulate your time and reduce cramping and to hold shorter periods because yours are long and agonizing
Bad cramps, but also if your period are irregular are both reasons why the pill is given to non sexually live people. Be honest next to your doctor though, they need to know the TRUE reason you want to be on the pill.