Pregnancy Calculator
Due Date & Baby Development Tracker
Calculate your due date, track baby development milestones, and monitor your pregnancy journey. Get personalized recommendations for each trimester of your pregnancy.
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Pregnancy Calculator
Calculate your due date and track pregnancy progress
Enter the first day of your last menstrual period
Typical range is 21-35 days (28 is average)
Pregnancy Information
Your pregnancy timeline and current status
Enter valid information to calculate pregnancy details
Understanding Pregnancy
Learn about pregnancy dating, trimesters, and what to expect on your journey.
Gestational Age
Calculated from the first day of your last menstrual period (LMP). This is typically 2 weeks longer than the actual fetal age from conception.
Due Date Accuracy
Only about 5% of babies are born on their due date. Most babies (80%) are born within 2 weeks before or after the due date.
First Trimester (1-12 weeks)
Major organ development occurs. Common symptoms include morning sickness, fatigue, and breast tenderness.
Second Trimester (13-27 weeks)
Often called the 'golden period' with increased energy. You may feel baby movements (quickening) around 18-22 weeks.
Third Trimester (28-40 weeks)
Rapid growth and weight gain. Baby's organs mature in preparation for birth. Labor preparation begins.
Prenatal Care
Regular checkups, ultrasounds, and screenings help monitor your health and baby's development throughout pregnancy.
Baby Development Milestones
Week 8
Size of a raspberry
- Heart beats regularly
- Brain developing rapidly
- Fingers forming
Week 20
Size of a banana
- Gender can be determined
- Movements felt
- Hair growing
Week 28
Size of an eggplant
- Eyes can open
- Viability with care
- Sleep cycles develop
Week 40
Size of a watermelon
- Fully developed
- Ready for birth
- Avg 7-8 lbs
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