What effect does perimenopause have on fertility?

During perimenopause, a woman becomes less fertile. Ovulation and menstrual periods becomes irregular and gradually stop. Pregnancy is still possible during perimenopause, however. To avoid an unwanted pregnancy, continue to use birth control until you reach menopause and have not had a period for a full year.

In the perimenopause period, just because menstruation is irregular does not mean the woman is infertile. A woman can still be fertile and can still get pregnant during perimenopause, the time period when a woman's menstrual cycle becomes irregular. In fact, many unplanned pregnancies occur in this age group of women. Menopause is not official until a woman has gone 12 months without a period. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.