Pregnancy Due Date Calculator
Calculate your estimated due date and track pregnancy milestones.
2026 Tax YearData stays on your deviceUpdated Apr 1, 2026
Estimated Due Date
November 20, 2026
Week 8 of 40Trimester 1
Week 0Week 13Week 27Week 40
Days Remaining
223
Current Week
Week 8
Trimester 1
Estimated Conception
February 27, 2026
Progress
20%
| 1st Trimester | February 13, 2026 - May 15, 2026 |
| 2nd Trimester | May 15, 2026 - August 21, 2026 |
| 3rd Trimester | August 21, 2026 - November 20, 2026 |
Frequently Asked Questions
How is the due date calculated?
The due date is estimated at 280 days (40 weeks) from the first day of your last menstrual period (LMP). This is called Naegele rule. Only about 5% of babies are born on their exact due date.
What are the trimesters?
First: weeks 1-12 (organ development). Second: weeks 13-26 (growth, movement). Third: weeks 27-40 (maturation, preparation for birth).
Official Data Sources
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Built and reviewed by Konstantin Iakovlev · Data from CRA, CMHC, Bank of Canada · MethodologyDisclaimer: This calculator provides estimates based on publicly available data from CRA and other government sources. It does not constitute financial advice. Consult a qualified advisor for decisions about your specific situation.
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