Pregnancy Due Date Calculator - Baby ETA

Estimate your due date, current pregnancy timing, trimester, and countdown using common pregnancy dating assumptions.

Allowed range: 20 to 45 days
Estimated due date Enter your dates and calculate to see your estimate. Estimate status will appear here.
Gestational age today --
Trimester --
Time remaining --
Conception estimate --
Estimated LMP --
Countdown --

Calculation breakdown

1
Input used

Choose a method and enter the matching date.

2
Dating assumption

Standard estimates use 280 days from the last menstrual period or 266 days from conception.

3
Today’s estimate

Results will update after calculation.

Cycle length, ovulation timing, ultrasound measurements, and clinical history can change how a pregnancy is dated.

Medical disclaimer

This calculator provides a planning estimate only. It is not diagnostic medical advice and should not replace guidance from an obstetrician, midwife, fertility clinic, or other qualified healthcare professional.

What Is Pregnancy Due Date Calculator?

A simple planning resource that helps estimate a baby’s expected arrival date using common pregnancy dating methods.

Estimated Due Date

A Pregnancy Due Date Calculator gives an estimated delivery date based on the first day of your last menstrual period or conception timing.

Learn what your date means

Pregnancy Timeline Guide

It helps you understand where you may be in pregnancy and how your weeks, trimesters, and milestones typically line up.

Explore your timeline

Health Planning Support

The estimate can support conversations about prenatal visits, scans, supplements, and healthy routines during pregnancy.

Plan with confidence

Quick Date Estimate

Instead of counting weeks manually, the calculator provides a fast, easy-to-read estimate for early planning.

Save time planning

Not a Medical Diagnosis

The result is a helpful estimate, but your healthcare provider may adjust dates after an ultrasound or clinical review.

Use as guidance

Milestone Awareness

Knowing an estimated due date makes it easier to follow key pregnancy stages and prepare for what comes next.

Track each stage

Useful for Appointments

A clear estimate can help when scheduling prenatal care, asking questions, or sharing details with your care team.

Prepare for visits

Family Preparation

The date gives families a practical planning window for work, travel, baby essentials, and support at home.

Start preparing early

Why Use Pregnancy Due Date Calculator?

It turns uncertain dates into a practical planning reference for pregnancy care, personal schedules, and family preparation.

Organize Prenatal Care

Use the estimate to plan checkups, screening windows, and routine conversations with your healthcare provider.

Follow Pregnancy Progress

It helps connect dates with weeks of pregnancy, making progress easier to understand and discuss.

Plan Work and Leave

An estimated due date can support early planning for maternity leave, workload changes, and important deadlines.

Prepare Baby Essentials

Families can pace purchases, nursery setup, hospital bag planning, and support arrangements more comfortably.

Manage Travel Timing

The estimate helps you think ahead about travel, events, and commitments that may fall later in pregnancy.

Improve Care Discussions

Having a date range makes it easier to ask focused questions and understand provider recommendations.

Simple Online Access

A calculator is convenient when you need a quick pregnancy date estimate without manual counting.

Reduce Planning Guesswork

While every pregnancy is different, a clear estimate can make early decisions feel more organized.

How to Use Pregnancy Due Date Calculator?

Follow a simple process to get a useful estimate and understand how to apply it in real-life pregnancy planning.

Step 01 01

Choose Your Date Method

Start with the first day of your last period, conception date, IVF transfer date, or another available reference.

Step 02 02

Enter the Date Carefully

Use the most accurate date you know, since small date changes can shift the estimated due date.

Step 03 03

Review the Estimate

Read the result as an estimated delivery date rather than a guaranteed birth date.

Step 04 04

Check Pregnancy Week

Use the result to understand your approximate pregnancy week and trimester stage.

Step 05 05

Plan Care Milestones

Use the estimate to prepare for prenatal appointments, ultrasounds, and recommended health checks.

Step 06 06

Coordinate Family Support

Share the estimated timeframe with trusted family members or support people when planning ahead.

Step 07 07

Confirm With a Provider

Your clinician may confirm or adjust the date using ultrasound findings and your personal health history.

Step 08 08

Use It as a Guide

Keep the date as a helpful planning tool while remembering that babies often arrive before or after the estimate.

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