My stomach hurts. My period didn't come. What happened?

If it is close to menstruation time but menstruation does not come, it is recommended that the patient observe for two more days, occasionally a menstrual delay is normal, abdominal pain may be caused by pelvic congestion, may also be caused by inflammatory bowel disease, intestinal flatulence, intestinal colic, if the symptoms continue to worsen, it is recommended that the patient seek medical attention in time.