Due Date Calculator

The Due Date Calculator estimates the delivery date of a pregnant woman based on her last menstrual period (LMP), ultrasound, conception date, or IVF transfer date.

Pregnancy Due Date Calculator

Calculate your estimated due date and track your pregnancy progress

Calculation Method

Select Calculation Method: Last Menstrual Period Ultrasound Date Conception Date IVF Transfer Date

First Day of Last Period:

Ultrasound Date: Gestational Age (weeks):

Conception Date:

IVF Transfer Date: IVF Transfer Type: 3-Day Transfer 5-Day Transfer

Results

Estimated Due Date:

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Current Pregnancy Progress:

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Trimester:

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Baby Development:

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Conception Date:

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Progress:

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Pregnancy Week-by-Week Guide

Week	Date Range	Trimester	Important Milestones

About Pregnancy Due Date Calculation

The estimated due date (EDD) is calculated as 40 weeks from the first day of your last menstrual period (LMP). This is based on the assumption of a 28-day cycle with ovulation occurring on day 14.

Note: Only about 5% of babies are born on their exact due date. Most births occur within two weeks before or after the due date.

For multiple pregnancies (twins, triplets), the due date is typically earlier than for single pregnancies.

This calculator provides estimates based on averages. Always consult with your healthcare provider for personalized medical information.