Pregnancy Wheel is an app primarily meant for professional health worker to calculate the dates of pregnancy. It can also be used for personal tracking. Calculates: - Last Menstrual Period (LMP) - Estimates date of Conception - Expected date of delivery (EDD) - Estimated Gestation Age of the pregnancy - Estimated Gestation Age from ultrasound - Trimester of the pregnancy - Stores Multiple patients NOTE The Pregnancy Wheel calculates 280 days from the Last menstrual period to the expected date