Pregnancy Wheel, Pregnancy Calculator
The Cascade Pregnancy Calculator Wheel is made of thin plastic and printed in purple, these pregnancy wheels are used to calculate due dates. The indicator arrow on the wheel is positioned on the first day of the last cycle and shown opposite the second indicator arrow is the expected due date. This is a great wheel to have on hand for all midwives, nurse-midwives and health care professionals working in the field of childbirth and pregnancy.
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