Prego OB Wheel

Quick, accurate, easy-to-use obstetrical date calculator for healthcare professionals. Designed and developed by family physician Dr. Émilie Coudière and software developer Jeffrey Fulton.

Quickly calculate:

  • EDD from LMP, conception, or ultrasound.
  • Patient's GA as of today.
  • GA on future date — i.e. How many weeks will my patient be on June 15th?
  • Date of future GA — i.e. When will my patient be 28 weeks?
  • * Calculations based on a gestation of 40 weeks (280 days).

Quickly save:

  • Patients' dates by simply adding a name.
  • Add quick notes to patients — i.e. Rh, GBS, GTPAL, etc.
  • Add delivery date to track postpartum patients.

Quickly reference:

  • Previously saved patients.
  • List of upcoming deliveries.
  • List of postpartum patients.

That's it. One screen. Super simple. Enjoy!

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Questions, comments, concerns

Please contact us at if you have any questions, comments, or concerns. Cheers!