Due Date Calculator

Calculate your estimated due date and track your pregnancy journey with our comprehensive calculator.

Calculate Your Due Date

LMP Method
Conception Date
Ultrasound Data

Your Pregnancy Timeline

Estimated Due Date

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Based on the information you provided, this is your estimated due date. Only about 5% of babies are born on their exact due date.

Current Pregnancy Progress

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Key Pregnancy Milestones

Week 12
First Trimester Ends

Risk of miscarriage decreases significantly. First ultrasound typically performed.

Week 20
Anatomy Scan

Detailed ultrasound to check baby's development. Often when gender can be determined.

Week 28
Third Trimester Begins

Baby's survival rate if born prematurely increases to over 90%.

Week 37
Full Term

Baby is considered full term and could arrive safely at any time.

About Due Date Calculation

How Due Dates Are Calculated

Due dates are typically calculated using Naegele's Rule: add 7 days to the first day of your last menstrual period, then subtract 3 months. This assumes a 28-day cycle with ovulation on day 14.

Accuracy of Due Dates

Only about 5% of babies are born on their exact due date. Most births occur within two weeks before or after the estimated due date. First-time mothers often deliver after their due date.

Factors That Affect Due Date

Irregular menstrual cycles, recent hormonal contraception use, breastfeeding, and certain medical conditions can affect the accuracy of due date calculations.

When to Consult Your Doctor

Always confirm your due date with a healthcare provider. They may adjust it based on early ultrasound measurements, which are most accurate in the first trimester.