Gynaecology & Obstetrics In pregnancy, calculation of EDD (expected date of delivery) considers: March 2013 A First day of last menstruation B Last day of last menstruation period C Mid time of last menstrual period D Day of coitus 💡 Explanation In pregnancy, calculation of EDD (expected date of delivery) considers: March 2013 ✓ Correct Answer: A. First day of last menstruation