Understanding An OB Wheel When Pregnancy Dates Differ An OB wheel can show the gestational age of a pregnancy on a chosen date, when it reaches 40 weeks and the expected gestational age at an upcoming appointment. The underlying calculation is relatively simple. The harder part is deciding which reference https://scopeflows-viralwire333.wssblogs.com/43218250/the-must-know-details-and-updates-on-o-wheel-calculator