Your first menstrual period is called menarche. It usually happens around age 12. But it is normal to start as early as age 9 or as late as age 15. Starting your period is a sign that you are growing up and becoming a woman. Having a period also means you can get pregnant if you have sex. You can even get pregnant in the month before your first period starts.
At first, your period may not come every month in a regular pattern. It could be as long as 2 years before yours has a regular pattern. Most women have a period about every 4 weeks.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Call your doctor or nurse call line now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor or nurse call line if:
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Current as of:
February 25, 2016
Adam Husney, MD - Family Medicine
& Martin J. Gabica, MD - Family Medicine
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