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Missed Periods and Fertility
A missed period occurs when an expected menstrual period does not happen. Pregnancy is one possible explanation, but missed periods can also result from changes in ovulation, stress, weight, exercise, medications, hormones, or other health factors.
This page explains common reasons for missed periods, how absent or delayed menstruation may relate to ovulation and fertility, and when recurring missed periods may warrant evaluation.
Summary:
- A missed period occurs when an expected menstrual period does not happen.
- Pregnancy is one possible cause, but missed periods can also result from changes in ovulation, hormones, stress, weight, or health.
- Repeated missed periods may indicate that ovulation is not occurring regularly.
- Evaluation may include pregnancy testing, menstrual history, hormone testing, ultrasound, and fertility assessment when appropriate.
- Treatment depends on the underlying cause and whether pregnancy is desired.
- This page explains missed periods, possible causes, fertility considerations, and when evaluation may be appropriate.
What Is a Missed Period?
A missed period occurs when an expected menstrual period does not happen. Pregnancy is one possible explanation, but periods can also be missed when ovulation is delayed or does not occur.
An occasional missed period does not necessarily indicate a fertility problem.
What Causes Missed Periods?
Possible causes include pregnancy, PCOS, stress, changes in weight or energy availability, intensive exercise, thyroid or prolactin disorders, perimenopause, primary ovarian insufficiency, medications, and other hormonal factors.
Missed Periods & Fertility
Repeated missed periods may indicate that ovulation is occurring infrequently or not at all. When ovulation does not occur regularly, opportunities for conception are reduced, although many causes of ovulatory dysfunction can be treated.
When Missed Periods Should Be Evaluated
Pregnancy should be considered when appropriate. Repeatedly missed periods, prolonged absence of menstruation, or missed periods accompanied by other hormonal symptoms should also be evaluated, particularly when pregnancy is desired. A longer absence of menstruation may be considered amenorrhea.
How Missed Periods Are Evaluated
Evaluation may include pregnancy testing, menstrual and medical history, hormone testing, and pelvic ultrasound. When fertility is a concern, physicians may also assess ovarian reserve and whether ovulation is occurring.
Common Missed Period Questions
Does a missed period mean I did not ovulate?
Not always. Ovulation may have occurred later than expected, although repeated missed periods can indicate irregular or absent ovulation.
What causes missed periods besides pregnancy?
Possible causes include PCOS, stress, changes in weight or energy availability, thyroid or prolactin disorders, and changes in ovarian function.
When should missed periods be evaluated?
Repeated or prolonged absence of periods should be evaluated, particularly when pregnancy is desired.
When to Seek Care
The information on this page is intended for general education and is not a substitute for medical advice, diagnosis, or treatment. An occasional missed period can occur for many reasons and does not necessarily indicate a fertility problem. Repeatedly missed or persistently absent periods deserve evaluation by an appropriately qualified healthcare professional.
If you’re hoping to build a family now or want to better understand and protect your future family-building options, Spring Fertility is honored to be part of your care. Our fertility specialists can evaluate ovulation, ovarian function, and other reproductive factors to help clarify what your menstrual pattern may mean for your fertility.
Ready to Get Started?
Schedule a consultation with Spring Fertility to discuss your options.