This calculator estimates your baby's due date based on your approximate date of conception. Your conception date will be calculated based on your last menstrual period, your average cycle length, and luteal phase.
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Due Date Based on Approximate Conception Date
Remember, the due date is only an estimate and you should always consult with your doctor. Only about 1 in 20 births occur on the predicted due date, so for most women, there will be a margin of error of a few weeks on either side of the due date.