I'm 42 days late for my menstrual cycle i took an hpt at 35 days and it was negative what should i do ?

Get checked: There are many possible reasons for missing your period. Your doctor can help you figure out why this has happened to you.

Any of the below fit: 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. Your Dr. can assess