Can constipation make your period late?

No.: Constipation is more related to the bowels. Your menstrual cycle is usually not associated with bowel habits.

Doubtful: 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.

No: Constipation in itself does not make your period late.