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Home > Patients & Visitors > Health Library > Interactive Tool: What Is Your Due Date?
here to find your due date.
This interactive tool
calculates your pregnancy due date, an estimate of when you are likely to
deliver your baby.
To find your due date, the calculator takes the
first day of your last menstrual period (LMP) and adds 40 weeks. If you are
planning a pregnancy, you can use this calculator to plan the birth for a
certain month or season.
Health Tools help you make wise health decisions or take action to improve your health.
Your due date is an
estimate of when you will likely have your baby, based on the normal length of
a full-term pregnancy. Most women deliver within 14 days of their due
Your health professional will also
measure the size of your uterus and use ultrasound testing to determine your
due date. For more information on planning a healthy pregnancy, see the topic
Source: Katz VL (2008).
Prenatal care. In RS Gibbs et al., eds., Danforth's Obstetrics and Gynecology, 10th ed., p. 4. Philadelphia: Lippincott Williams and
Other Works Consulted
Bernstein HB, Weinstein M (2007). Normal pregnancy and
prenatal care. In AH DeCherney et al., eds., Current Diagnosis and Treatment Obstetrics and Gynecology, 10th ed., pp. 187–202. New
Katz VL (2008). Prenatal care. In RS Gibbs et al.,
eds., Danforth's Obstetrics and Gynecology, 10th ed.,
pp. 1–21. Philadelphia: Lippincott Williams and Wilkins.
June 16, 2011
Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
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