Pregnancy Due Date Calculator

Find out exactly when your baby is due! Our calculator uses the last menstrual period (LMP) method, adjusted for your unique cycle length, to predict your estimated due date, current trimester, and baby's zodiac sign.

Pregnancy Timeline by Trimester

1st Trimester (Week 1-12): The most critical development period. The baby's body structure and organs develop.
2nd Trimester (Week 13-26): Often called the "honeymoon period" as nausea subsides. You may start to feel the baby move.
3rd Trimester (Week 27-40): The baby gains weight rapidly and prepares for birth.

How Accurate is this Date?

Only about 5% of babies are born on their exact due date. Most are born within a week before or after. Your doctor may adjust this date based on ultrasound measurements.