One day period after 5days of missed period. 9th day with spotting, stomach ache, lower back pain dizziness and gassy stomach. what do you think is it?

Pregnancy possible: If you have had unprotected sex you might be pregnant. Check with a home pregnancy test or followup with your doctor.

Uncertain: Take pregnancy test. Reasons for missed /late periods: low body weight, obesity, marked weight gain or loss, over-exercise such as in endurance athletes, breast-feeding, stress, illness, eating disorders (bulimia or anorexia), travel, hormone irregularities, drug use, medications (i.e., birth control) or med problem (polycystic ovary syndrome or Asherman’s syndrome. #1 reason for missed period is