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Due Date Calculator
Your baby's due date via Naegele's rule.
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Results
Estimated Due Date
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Note
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How to use the Due Date Calculator
Enter LMP and your average cycle length for a due date adjusted to your cycle.
Frequently Asked Questions
LMP + 1 year − 3 months + 7 days — the classic 280-day (40-week) estimate, adjusted here for cycle length.