If i miss my period for a month am i pregnant?

Not necessarily: However, please do a pregnancy test to be sure. Also, if you want to avoid pregnancy, please use consistent contraception

Not always: Take a pregnancy test to know. 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.

Stress: Stress is a major cause of irregularity in your periods. Get checked at your gynecologist to make sure you are not pregnant and they can check your hormone levels to be sure if everything is straight.