Pregnancy calculator is a free pregnancy calculator tool that helps you determine the approximate due date by imputing simple information about your monthly cycle. Please note that this is just a general tool and the theoretical date is only an estimate based on ideal conditions. Every individual pregnancy is very unique and subject to variable conditions that may add or shorten the actual delivery date.

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Be sure to keep in mind that any due date is only an estimate -- and only about 5% of babies actually arrive on the date they're "due." Your caregiver will typically assign your due date based upon a 28-day cycle.