Pregnancy Calculator
Estimate your due date from the last period, conception date or a confirmed due date. Adjust cycle length and see pregnancy weeks and milestones locally.
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Choose a calculation methodUse the most reliable date available to you.
days
Used to adjust the estimate when your cycle is longer or shorter than 28 days.
All dates are Gregorian. Calculations run in your browser without sending your data.
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Pregnancy start0%Due date
An informational estimateClinical dating can differ, especially after an early ultrasound. Follow the date and care plan confirmed by your healthcare professional.