i am 16 years old me and my boyfriend have been dating for 2 years out of these 2 years i have misse dmy period for 5 months but' stomach didn't get any bigger than it finally came. i Skipped two more month after that took a test came out negative. than came it's was coming regarly at first now i have skiped two more months . then it came down and lasted 3 days. Can someone tell me what's wrong with my body.