I am experiencing breast pain, fatigue & missed menstrual period. i'm very concerned i might be pregnant. i took a test yesterday, it came back negative. i'm still having the same symptoms and still no period. what should i do?

Repeat HPT in 1 wk.: 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 for missed period is pregnancy.