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Wednesday, March 11, 2026

Pregnancy Due Date Calculator

📖 How to Use

Select the date when your last menstrual period started. The calculator adds 280 days (40 weeks) to provide an estimated due date for your baby.

Frequently Asked Questions
How accurate is a due date? +
A due date is just an estimate. Only about 4% of babies are born exactly on their due date.
What is the Naegele’s Rule? +
It's a standard way of calculating due dates by adding a year, subtracting three months, and adding seven days to the last period.
Does cycle length matter? +
Yes, if your cycle is longer or shorter than 28 days, your actual due date might shift by a few days.
When should I see a doctor? +
As soon as you get a positive result, a doctor's visit is essential to confirm the pregnancy via ultrasound.

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