Estimate your baby’s due date based on last period
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A pregnancy due date calculator estimates your baby’s expected delivery date based on your last menstrual period (LMP).
The standard pregnancy duration is 280 days (40 weeks).
For example, if your LMP is January 1, your estimated due date will be around October 7.
This tool helps expectant parents track pregnancy progress and important milestones.
Explore more tools on our home page or visit health calculators.