I'm 16 going on 17 and my mom and I were recently discussing birth control because my periods are really irregular and I never know when they're coming which is a problem! However, I've had many girls tell me when they go on birth control their boobs grow and their hips get bigger. I'm a pre professional ballet dancer and I can not afford to gain any extra curves so I'm extremely hesitant to start the pill. Will I get boobs and hips or possibly gain weight?