When should you see a doctor about a missed period?

See your doctor if you miss three or more periods in a row, if a previously regular cycle becomes irregular for several months, or if your cycle falls outside the typical 21 to 45 day range. If there is any chance you could be pregnant, a home pregnancy test is the right first step before anything else. One late or missed period on its own is common and often resolves without intervention.

Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition.

Rule out pregnancy first

If you are sexually active and your period is late, checking for pregnancy with a home test is the most useful first step, since it changes what comes next. If the test is negative and your period stays absent, that is when the causes below become more relevant.

Signs it's time to book an appointment

Per the American College of Obstetricians and Gynecologists, it is worth talking with your OB-GYN or provider if:

• Your periods were regular each month and then stopped being regular
• Your period comes more often than every 21 days, or less often than every 45 days
• Your periods come more than 90 days apart, even for a single cycle
• You are 14 or older and have never had a period

The NHS notes that a missed or late period for more than three consecutive months, or one accompanied by severe pain and unusual symptoms, warrants a doctor's review.

Common non-pregnancy causes worth mentioning to your provider

According to the Eunice Kennedy Shriver National Institute of Child Health and Human Development, irregular cycles can stem from hormonal imbalances, stress, significant weight changes, thyroid function, and other underlying causes, and affect an estimated 14 to 25 percent of women of childbearing age. Bringing your provider a clear picture of your own pattern, rather than just "my period is late," helps narrow down the cause faster.

Dr. Tosin Odunsi, MD, MPH, FACOG, an obstetrics and gynecology physician, recommends coming prepared.

"The first thing is knowing your history and even writing it down. That way you can bring it and base your questions on what your history is."

— Dr. Tosin Odunsi, MD, MPH, FACOG, Obstetrics and Gynecology Physician

What to track before your appointment

• The start date of your last several periods
• Any recent changes in weight, exercise, sleep, or stress
• Whether you've recently started or stopped hormonal birth control
• Any other symptoms: pain, unusual bleeding, hair or skin changes, fatigue

If you and your provider decide a supplement fits into your routine, Pink Stork's clinically studied inositol ratio for hormone health, Myo Chiro 40:1, is formulated to support hormonal wellness, ovarian health, and menstrual cycle regularity.† Not for use during pregnancy. our doctor-formulated gummies for reproductive wellness, Premium Fertility Gummies, deliver 13 fertility-focused nutrients to support reproductive wellness while trying to conceive.†

Amy Suzanne Upchurch, Founder and CEO of Pink Stork, has spoken about the value of showing up prepared rather than anxious.

"Writing down what your body has actually been doing, instead of guessing from memory, is one of the simplest ways to walk into an appointment feeling steady instead of scared."

— Amy Suzanne Upchurch, Founder and CEO of Pink Stork

For more context on common, less concerning causes, see our guides on stress and cycle changes, heat and cycle changes, and cycle-length variation, or start with our pillar guide on this summer's missed period trend.

Frequently asked questions

How many missed periods before I should call my doctor?

Three or more consecutive missed periods, once pregnancy has been ruled out, is a general signal to schedule an appointment.

Is one late period ever a reason to call the doctor right away?

Not usually, unless it comes with severe pain or unusual symptoms. One late period is common and often resolves on its own.

What should I bring to the appointment?

A record of your recent cycle dates, any lifestyle changes, and your top two or three questions.

Does a missed period always mean pregnancy?

No. A missed period can result from stress, weight changes, illness, medications, or an underlying condition, in addition to pregnancy.

Can I take Myo Chiro 40:1 while I wait to see my doctor?

Talk with your provider first, especially if pregnancy hasn't been ruled out, since Myo Chiro 40:1 is not for use during pregnancy.

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition. Keep out of reach of children.