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

Your Safety and Well-being is our Priority

On behalf of all of us at Women’s Health Partners, in these difficult times, we want to thank you for your support and confidence in our practice.

We want you to personally know that our patients’ health and well-being has and always will be our number one priority. This reminder bears repeating in the face of any challenges and especially now, given concerns posed by the corona virus (COVID-19) pandemic.

We are taking all necessary precautions to ensure your safety and well-being and that of our staff. To that end, we want to share some of the steps we are taking:

Furthermore, our staff will be asking several screening questions regarding your health. We ask that you do not enter our office if you, or someone in your family, or someone you recently were in contact with, has exhibited flu-like symptoms such as fever, cough, shortness of breath, severe muscle aches, shaking chills, or recent loss of taste or smell, or recently diagnosed with COVID19.

In order to help us participate with our social distancing effort, we are asking patients to enter the office without any visitors, including children.

You will also have the option of waiting in your car instead of the waiting room after you have checked in. The front desk staff will call your cell phone when we are ready for you to come in for your visit.

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