Calculators Pregnancy Due Date Calculator

Pregnancy Due Date Calculator

Calculate your baby's due date and get a complete pregnancy timeline with trimester milestones

Calculation Method

Choose how to calculate

Enter Date

First day of your last period

Estimated Due Date
Select a date
-

Pregnancy Length

Total Weeks 40 weeks
Total Days 280 days
Days Remaining -

Key Milestones

Conception -
End 1st Trim. -
End 2nd Trim. -

Important Note

This is an estimate based on a 280-day (40-week) pregnancy. Only 5% of babies arrive on their exact due date. Most are born within 2 weeks before or after.

Trimester Guide

What to expect in each stage

🌱

First Trimester

Weeks 1-12
  • • Major organs begin to form
  • • Morning sickness common
  • • Fatigue and mood changes
  • • First prenatal appointments
  • • Baby's heart begins beating
👶

Second Trimester

Weeks 13-26
  • • Energy levels improve
  • • Baby bump becomes visible
  • • Feel baby's movements
  • • Anatomy scan (18-20 weeks)
  • • Find out baby's sex
🍼

Third Trimester

Weeks 27-40
  • • Baby gains most weight
  • • Braxton Hicks contractions
  • • More frequent checkups
  • • Prepare for delivery
  • • Baby gets into position

Pregnancy Due Date Calculator Guide & Articles

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Frequently Asked Questions

Common questions about the Pregnancy Due Date Calculator