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Ovulation calculator

Related Terms

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  • Ovulation is the moment during a woman's menstrual cycle when the ovarian follicle releases the egg. This is the time of peak fertility for a woman. Predicting when a woman will ovulate by way of calendrical method or fertility charting is called ovulation calculation. This ovulation calculator provides approximate dates for predicting ovulation. There are several variables that can cause cycle irregularities. To ensure accuracy, ovulation calculator results may be used in conjunction with other predictive tools.
  • Other methods predict ovulation by detecting luteinizing hormone (LH). Just preceding ovulation, women experience an "LH surge" - a sudden, dramatic and brief rise in the level of luteinizing hormone. Ovulation tests detect this LH surge, allowing women to accurately predict when they will ovulate. A positive result on an ovulation test means that the woman will most likely become fertile over the next three days - with peak fertility at 36 hours following the LH surge. Basal body temperature, changes in cervical fluid and fertility charting have also been used to detect ovulation, as has fertility charting, which helps predict
  • Note: The ovulation calculator cannot be used to reliably to prevent pregnancy.


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Charts and Calculators

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Author Information

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Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to Selected references are listed below.

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The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.