Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Interactive Tool: What Is Your Due Date?

What does this tool help you learn?

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.

Katz VL (2008). Prenatal care. In RS Gibbs et al., eds., Danforth's Obstetrics and Gynecology, 10th ed., p. 4. Philadelphia: Lippincott Williams and Wilkins.

What does your due date tell you?

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 date.

What's next?

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 Pregnancy.

References

Other Works Consulted

  • Bernstein HB, Van Buren G (2013). Normal pregnancy and prenatal care. In AH DeCherney et al., eds., Current Diagnosis and Treatment Obstetrics and Gynecology, 11th ed., pp. 141–153. New York: McGraw-Hill.
  • 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.

Credits

Current as of: February 11, 2020

Author: Healthwise Staff
Medical Review: Sarah A. Marshall, MD - Family Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Kirtly Jones, MD - Obstetrics and Gynecology, Reproductive Endocrinology

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COVID-19 Update

Women’s Care is closely following the most up-to-date announcements and information on the known cases of Novel Coronavirus (COVID-19). Because this information is always changing, we will be monitoring all updates from the World Health Organization and Centers for Disease Control. 

If you are experiencing a fever or chills, cough, shortness of breath, persistent chest pain or pressure, any other COVID Coronavirus or flu symptoms, or had COVID exposure, please make sure to contact us via phone prior to your appointment. You may also contact us for any additional questions by calling our office at (913) 384-4990. We are accepting appointments, however we are currently not allowing guests with the exception of ONLY allowing ONE guest for patients’ new OB visit and ultrasound, 20 week anatomy ultrasound, and 3D ultrasound. Infants and children are not allowed into our office at this time. 

Here are a few additional resources as well: 

World Health Organization
Centers for Disease Control

We appreciate your patience during this time, look forward to continuing to serve our community!

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