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About OB Wheel

Pregnancy due date calculator. Created by a board-certified ObGyn doctor.

Easy to use Multi-function pregnancy calculator. Created by a board-certified OBGyn.

This app is also available as a web app at https://obwheel.cc

Calculate dates of pregnancy:

- Last menstrual period (LMP)

- Estimated date of conception

- Estimated gestational age (EGA)

- EGA obtained by ultrasound

- Dating by IVF Embryo transfer

- Calculate gestation by Crown-Rump length

- Estimated due date (EDD)

Additional features:

- "Time Machine" mode can calculate "How many weeks will patient be on xxxx date?" and "When will patient be xx weeks gestation?"

- Adjust length of cycle and luteal phase

- Store multiple patients for easy retrieval

- Include extra notes in patient data

- Export/import your saved data

- Full Help pages

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***IMPORTANT NOTE***

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This app calculates exactly 280 days (40 weeks) from LMP to EDC, and accordingly for any date in between. Please note that the paper/plastic wheels used by obstetricians or ultrasound technicians are inherently inaccurate. Different pregnancy wheels may vary by as much as 3 or 4 days. Please keep this in mind when comparing the values obtained here to those given in clinics/hospitals.

(see here: https://bit.ly/pregwheel)

What's New in the Latest Version 81.0.3

Last updated on Feb 21, 2024

- Fixed bug where selecting a month from the month grid does not match the correct year. (thisboxdate in gridcal_new)
- Fixed bug in gridcal code to ignore touchmove when gridcal is active.
- Cleaned up reference links in #aboutbili page.
- Fixed CSS bug in the Bili navigator that was causing issues for Safari/Opera browsers.

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Additional APP Information

Latest Version

Request OB Wheel Update 81.0.3

Uploaded by

Theerapat Poonsawat

Requires Android

Android 5.1+

Available on

Get OB Wheel on Google Play

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OB Wheel Screenshots

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