A large, randomized trial revealed that without exercise during pregnancy, women are three times more likely to develop hypertension, 1.5 times more likely to gain excessive weight, and 2.5 times more likely to give birth to a baby that is large for its gestational age. Study co-author Dr. Michelle Mottola recommends that pregnant women should aim for 10,000 steps per day during pregnancy.
American Journal of Obstetrics and Gynecology, December 2015