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Pregnancy Due Date Calculator

This is an estimate based on a 40-week pregnancy. Please consult your doctor for medical advice.

What is a Pregnancy Due Date Calculator?

A pregnancy due date calculator estimates your expected delivery date based on the first day of your last menstrual period. It helps expectant parents plan and track pregnancy progress.

How accurate is the due date from the calculator?

The calculator offers an estimated due date assuming a 40-week pregnancy. Actual delivery may vary by days or weeks. For precision, consult your healthcare provider and consider medical scans.

Can I use the calculator if I don't know the exact date of conception?

Yes. The calculator typically uses the first day of your last menstrual period (LMP), which is more commonly known and provides a reliable estimation.

Why is the due date based on the last menstrual period?

LMP is a consistent reference point known by most women, making it more reliable than estimating the date of conception, which can vary significantly.

What if my cycle is irregular?

If your cycle is irregular, this tool may be less accurate. In that case, an early ultrasound is typically used to determine gestational age and an accurate due date.

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