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

Last Menstrual Period (LMP)

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

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