Calculate Due Date

Calculation Method

Start Date

Average Cycle Length (days)

How it Works

The most common method for calculating due date is based on the first day of your last menstrual period (LMP). Pregnancy lasts about 280 days (40 weeks) from the first day of your LMP.

Pregnancy Timeline

Estimated Due Date

Oct 22, 2024

280 days from LMP

Current Gestation

12 weeks

84 days pregnant

Trimester

First

33% complete

Key Dates

Start of Pregnancy: Jan 15, 2024

End of First Trimester: Apr 15, 2024

End of Second Trimester: Jul 15, 2024

Estimated Due Date: Oct 22, 2024

Pregnancy Progress

Trimester 1

Trimester 2

Trimester 3

12 weeks

Due Date Calculator

Estimate your baby's expected arrival date with our Due Date Calculator. Just enter the first day of your last menstrual period (LMP) or your conception date to find out when your bundle of joy is likely to arrive.

What is a Pregnancy Due Date?

A pregnancy due date is the estimated date when a baby is expected to be born. It is typically calculated based on a 280-day gestational period from the first day of the last menstrual period (LMP).

Due Date Calculation Methods

Last Menstrual Period (LMP): Adds 280 days (or 40 weeks) to the first day of your last period.
Conception Date: Adds 266 days (or 38 weeks) from the date of conception.

How to Use the Due Date Calculator

Select whether you're using the LMP or conception date.
Enter the relevant date in the input field.
Click "Calculate" to see your estimated due date.

Why It Matters

Helps you plan prenatal visits and testing schedules
Guides your preparations for childbirth and maternity leave
Gives a timeline for your pregnancy milestones

Important Note

This tool provides an estimate and should not replace medical advice. Always consult with your healthcare provider for the most accurate due date based on ultrasounds and other assessments.