10 days missed period without signs of pregnancy. What is this?

10 days late periods. Did you have the pregnancy test.10 days of amenorrhea may or may not have any symptoms and signs of pregnancy, only blood or urine test can tell if you are pregnant.If pregnancy test is negative then consult your gynecologist.
TAKE 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.