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Pregnancy Calculator
Free online pregnancy calculator. Find your due date, current week of pregnancy, and key milestones.
Estimated Due Date
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Find your estimated due date and track your pregnancy week by week. Enter your last menstrual period (LMP) date and instantly see your due date, current trimester, and important milestones.
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FREQUENTLY ASKED QUESTIONS
How is the due date calculated?
Add 280 days (40 weeks) to the first day of your last menstrual period (LMP). Only about 5% of babies are born on their exact due date.
What trimester am I in?
First trimester: weeks 1-12. Second trimester: weeks 13-27. Third trimester: weeks 28-40.
When should I see a doctor?
Schedule your first prenatal appointment as soon as you confirm pregnancy, ideally between weeks 8-10.
How accurate is an online due date calculator?
Online calculators give an estimate based on a 28-day cycle. Ultrasound measurements in the first trimester are the most accurate way to confirm your due date.