Pregnancy Calculator

Need to calculate your pregnancy due date?

Follow these simple instructions to discover estimates in seconds for a conception date, gestational age, and due date.

Pregnancy Calculator Instructions:

  1. First provide the first day of your last menstrual period.
  2. Then provide the average length of your ovulation cycle.
  3. Click the red “calculate” button to view the results.
  4. Review information below pregnancy calculator for next steps.

Pregnancy Due Date Calendar

Estimated Fertility Window
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Estimated Conception Date
Estimated Gestational Age
Estimated Due Date


This is not a diagnosis. The calculations that are provided are estimates based on averages.
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