question: Hi I m Shelby . I m young . I m only 16, but I really need help. I been on this birth control for about. Months then it started to mess up to where I had 3 periods in a month so I just stopped taking it. My doctor put me back on it and it s fine , but I m suppose to start my period.. I haven t. I also have upper pain in my stomach . It feels like it s bruised. It hurts to lay on my stomach. What could it be ?