Step 4: Read and complete the decision guide to learn more about your symptoms.
Missed or Irregular Menstrual Periods
So far your answers indicate that you are at least 16 years old, have started menstruating and have not had sexual intercourse.
Irregular periods are common in the first few years after you first start menstruating. Periods then become normal and flow monthly without any special treatment. Sometimes the problem of irregular periods will persist or worsen. Contact your doctor if your irregular periods persist or your menstrual periods stop completely and do not reappear.
To learn about additional reasons for missed or skipped periods, please continue with this guide.