Is it bad if I get my period twice in one month? Why does this happen? – Shoshanna* It's often normal during the teen years to have irregular periods. When a girl's period is irregular, it might come more than once a month or only come every few months. Some girls find they get their period more than once some months, then they might not have another for several months. This is the body's natural way of adjusting to the changes that come with growing up. Your cycle should settle down within a couple of years of getting your first period. If your periods are heavy, often come more than once a month, or if you've had sex, check in with your doctor or nurse practitioner or visit a local health clinic. Some clotting problems, hormone problems, and sexually transmitted infections (STDs) can cause girls to bleed more. A checkup can help determine if you need any medication or treatment — such as iron supplements to prevent anemia or antibiotics for an infection. Best of all, getting checked out can put your mind at ease and give you a chance to learn more about your body. *Names have been changed to protect user privacy. Back to Articles Related Articles Irregular Periods Wondering whether it's normal to have irregular periods? Get the facts about this common problem. Read More PMS, Cramps, and Irregular Periods Get the facts on which period problems are normal and which ones might indicate something's going on. Read More My Periods Are Irregular. What's Going On? Find out what the experts have to say. Read More All About Periods Periods can be confusing. Get the facts in this article for teens. Read More Gyn Checkups Girls should get their first gynecological checkup between ages 13 and 15. Find out what happens during a yearly gyn visit -- and why most girls don't get internal exams. Read More How Do You Know If Your Period Is Regular? Find out what the experts have to say. Read More I'm 19. Is it Normal to Still Have Irregular Periods? Find out what the experts have to say. Read More Is It Normal for My Period to Stop at Night? Find out what the experts have to say. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.