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What is a Due Date?

Your due date is estimated by adding 40 weeks (280 days) to the approximate first day of your last menstrual period.

Contact Us
  • Obstetrics, Gynecology & Nurse Midwifery
    Keene, NH
    Phone: (603) 354-6640
    Fax: (603) 354-6645

Only five percent of women deliver their babies on their projected due date, so this date should be used as an estimate - it is not exact. Some women deliver earlier, or go days beyond, maybe even a week or two. For that reason, we encourage women to think about their due month rather than focus on a specific date.

Try our Due Date Calculator.