FigCalc LogoFigCalc

🤱 Pregnancy Due Date Calculator

Calculate your baby's due date and track your pregnancy journey with our comprehensive calculator. Get detailed timeline, trimester breakdown, and important pregnancy milestones.

📅 Calculation Method

How would you like to calculate your due date?

🩸 Last Menstrual Period (LMP)

The first day of your last menstrual period

Your typical menstrual cycle length

👶 Pregnancy Timeline

Results

Select a calculation method and enter your dates to see your pregnancy timeline

Note: This calculator provides estimates for educational purposes only and should not replace professional medical advice. Due dates are estimates and actual delivery dates can vary significantly. Always consult with your healthcare provider for accurate pregnancy dating, medical advice, and personalized care throughout your pregnancy journey. Only your doctor can provide accurate medical information based on your specific situation.

📚 Understanding Pregnancy Due Dates

Learn about the different methods to calculate your due date, the pregnancy timeline, and important milestones.

📊 Calculation Methods Explained

Last Menstrual Period (LMP)

Most common method using the first day of your last period. Assumes ovulation occurs 14 days into cycle.

Best for: Regular cycles, unsure of conception date
Accuracy: ±1-2 weeks

Conception Date

Most accurate if you know the exact date of conception or ovulation.

Best for: Fertility tracking, known ovulation date
Accuracy: ±3-5 days

Ultrasound Dating

Uses fetal measurements to determine gestational age. Most accurate in first trimester.

Best for: Medical accuracy, irregular cycles
Accuracy: ±3-5 days (early), ±1-2 weeks (later)

IVF Transfer

Precise calculation based on embryo transfer date and development stage.

Best for: IVF pregnancies
Accuracy: ±1-2 days

📅 Pregnancy Timeline

First Trimester (Weeks 1-12)

Organ development, morning sickness, first prenatal visits

Second Trimester (Weeks 13-26)

Anatomy scan, feeling movements, gender reveal possible

Third Trimester (Weeks 27-40)

Rapid growth, preparation for birth, labor signs

🚨 Important Reminders

  • ✓ Due dates are estimates - only 5% of babies are born on their due date
  • ✓ Full-term range is 37-42 weeks
  • ✓ Regular prenatal care is essential throughout pregnancy
  • ✓ Ultrasound dating may adjust your due date
  • ✓ First-time mothers often deliver after their due date