I missed my periods for 2 consecutive months then they came on again. i'm 31 so i cannot be on menopause what could be the problem?

There is probably: NO PROBLEM..."PERI-MENOPAUSE" can occur years before menopause itself..and even if that is NOT the situation occasional menstrual irregularity occurs in all women some times without specific abnomalities. Hope this is helpful Dr Z

Hormonal irregularit: Reasons for missed /late periods: low body weight, obesity, marked weight gain or loss, over-exercise such as in endurance athletes, breast-feeding, stress, illness, eating disorders (bulimia or anorexia), travel, hormone irregularities, drug use, medications (i.e., birth control) or med problem (polycystic ovary syndrome or Asherman’s syndrome. #1 reason is pregnancy.