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Conception Calculator
Estimate your conception date based on due date or last menstrual period. Find your fertility window.
Results
Estimated Conception Date
Mon, Dec 29, 2025
Fertility Window
Wed, Dec 24, 2025 - Tue, Dec 30, 2025
Due Date
Mon, Sep 21, 2026
Conception dates are estimates based on average cycle lengths. Actual conception could vary by several days. Consult a healthcare provider for accurate information.
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