How can i ask my mom for birth control??
Answers: Just tell her out right that you want to bring on birth-control. Tell her that you think it will help next to your cramps and acne and to regulate your period. That should be enough for her. If you do clutch birth-control, then you'll always be primed in case there's ever a "roast of the moment" time, so you shouldn't have to worry too much roughly that (though still use a condom because of STIs). She should respect you enough to let you at lowest possible talk to a doctor about it.