A 41-year-old member asked:
my period is 1 week late, but i have a negative pregnancy test. what's going on?
1 doctor answer
Dr. Heidi Fowler answered
24 years experience Psychiatry
Hpt: Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy.
Answered on May 28, 2015
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