Pregnancy Due Date Calculator
Calculate your estimated due date based on your last menstrual period, conception date, or ultrasound. Track your pregnancy week by week with key milestones and trimester information.
Step 1: Calculation Method
About Due Date Calculation
Most pregnancies last about 40 weeks from the first day of your last menstrual period. If your cycle is longer or shorter than 28 days, your due date may be adjusted.
Step 2: Pregnancy Details
Pregnancy Trimester Information
Pregnancy is divided into three trimesters: First (weeks 1-13), Second (weeks 14-27), and Third (weeks 28-40+). Each trimester has unique developmental milestones.
Pregnancy Due Date Results
Estimated Due Date
Pregnancy Timeline
| Trimester | Weeks | Key Dates | Development Stage |
|---|
Pregnancy Timeline Notes
Every pregnancy is unique. These dates are estimates based on a 40-week pregnancy. Your healthcare provider will give you the most accurate timeline based on your individual circumstances.
Pregnancy Milestones
Important Pregnancy Dates
First Prenatal Visit: 8-12 weeks
Typically includes confirmation of pregnancy, medical history review, and initial tests. Anatomy scan is usually performed at 18-22 weeks.
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