One week over , then only 2 day period , pregnant?

Periods: Periods can be erratic. The only way to know if you are pregnant is to do a pregnancy test.

Reasons for 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. #1 reason is pregnancy. The main reason for light periods is a change in hormone levels.