Pregnancy Due Date Calculator Estimate your baby’s due date. From Last Period From Conception Date From Ultrasound First Day of Last Menstrual Period (LMP): Average Length of Menstrual Cycle (days): Estimated Conception Date: Ultrasound Date: Gestational Age (Weeks): Gestational Age (Days): Calculate Due Date Calculation Results: Pregnancy Timeline: *All calculations are estimates. Ovulation is typically assumed to occur 14 days before the start of the next menstrual period. Consult with a healthcare provider for precise information and medical advice. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X
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