Ovulation Calculator

Understanding when you ovulate is one of the most important steps on your journey to conception. This ovulation calculator takes your average cycle length and the date of your last period to work out your most fertile days, your likely ovulation date, and the best times to try for a baby.

Whether you have a regular 28-day cycle or something a little different, the calculator adjusts to give you a personalised fertile window so you can plan with confidence. If you have any comments or would like additional tools, please leave a comment at the bottom of this page.

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This calculator provides estimates based on average cycle patterns and should not be used as medical advice or as a method of contraception. Every woman's cycle is different, and ovulation can vary from month to month. Please consult your doctor or fertility specialist for personalised medical guidance.
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