Should I Be Concerned With Menstrual Irregularity? Dear BeingGirl Experts, I am 17 years old, and I didn't have my period for about one year. Then, I had it and it lasted about three days. Now it is almost three months late. Is this something I should be concerned about? I started my period when I was about to enter the sixth grade, and I had no unusual problems until now. If I should be concerned about it, how should I tell my mom? We've never really talked about personal things like this before. Thanks, Mandi --- Dear Mandi, Mom needs to know about your menstrual irregularity. Face-to-face conversations are best. So ask mom for a good time for you two to have a few minutes of alone time so you can talk to her about missing periods. Chances are this will be a much easier conversation than you think. Ask mom to make you an appointment with a gynecologist/healthcare provider for a diagnosis and treatment. This is about your health and isn’t anything to be embarrassed about. Good luck, Your BeingGirl Experts Experiencing menstrual irregularity? Get helpful answers, tips and advice from the experts at BeingGirl.