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Pregnancy Due Date Calculator

Estimate your baby due date from your last menstrual period and cycle length. Private, fast, and easy pregnancy date calculator.

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About Pregnancy Due Date Calculator

1

Enter LMP

Add the first day of your last menstrual period.

2

Set Cycle Length

Adjust the cycle length if yours differs from the default.

3

Review Results

View your estimated due date and pregnancy timeline.

Use this private browser-based pregnancy due date calculator to estimate your delivery date, current pregnancy week, and important pregnancy milestones from your last menstrual period and cycle length.

Key Features

Due Date Estimate

Calculate an estimated delivery date from LMP and cycle details.

Pregnancy Timeline

See pregnancy progress and milestone timing in a clear browser-based view.

Private by Design

Your dates are processed locally in your browser.

Frequently Asked Questions

No. It is an estimate based on common pregnancy dating formulas. A healthcare professional can provide more personalized guidance.

No. The calculator runs in your browser and does not need to upload your dates.

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