Welcome to the most comprehensive pregnancy calculator online. Estimate your due date, track your baby's development week by week, and get personalized insights throughout your pregnancy journey.
📅 Calculate Your Due Date
🎉 Your Pregnancy Results
Key Dates:
👶 Week by Week Baby Development
Week 4-5: The Beginning
The fertilized egg implants in the uterus. You might notice early pregnancy symptoms like fatigue and tender breasts.
Week 8: First Heartbeat
Baby's heart begins to beat! All major organs start forming. You might experience morning sickness.
Week 12: End of First Trimester
Risk of miscarriage drops significantly. Baby can move (though you won't feel it yet). Nuchal translucency scan is typically done.
Week 20: Halfway There!
Anatomy scan reveals baby's gender (if you want to know!). You'll start feeling fluttering movements.
Week 28: Third Trimester Begins
Baby can open eyes and respond to light. Start counting kicks. Glucose screening test is usually done.
Week 36-40: Almost There!
Baby is fully developed and gaining weight. Prepare your hospital bag and birth plan. Any day now!
📋 Pregnancy Milestone Timeline
⚠️ Important Pregnancy Tips
- Raw or undercooked meat, fish, or eggs
- Unpasteurized dairy products
- High-mercury fish (shark, swordfish, king mackerel)
- Deli meats and hot dogs (unless heated)
- Alcohol and excessive caffeine
- Take prenatal vitamins daily (folic acid is crucial)
- Stay hydrated (10 cups of water daily)
- Moderate exercise (30 minutes most days)
- Get plenty of sleep
- Attend all prenatal appointments
📊 Pregnancy Statistics
| Stage | Duration | Key Developments |
|---|---|---|
| First Trimester | Week 1-12 | Organ formation, heartbeat begins |
| Second Trimester | Week 13-27 | Movement felt, gender visible |
| Third Trimester | Week 28-40 | Rapid growth, lung maturation |
❓ Frequently Asked Questions
Only about 4% of babies are born on their exact due date. About 60% arrive within a week, and 90% within two weeks. The due date is an estimate based on a 28-day cycle.
If your cycle is longer or shorter than 28 days, adjust the cycle length in our calculator. For very irregular cycles, an early ultrasound provides the most accurate dating.
Most home pregnancy tests can detect hCG hormone about 10-14 days after conception, or the day your period is due. For best accuracy, test with first morning urine.
It depends on your pre-pregnancy BMI. Underweight women should gain 28-40 lbs, normal weight 25-35 lbs, overweight 15-25 lbs, and obese women 11-20 lbs.
Yes! Moderate exercise is beneficial. Aim for 30 minutes of activity most days. Avoid high-impact sports, exercises on your back after week 16, and anything with fall risk. Always consult your doctor first.