The success of a pregnancy is measured by the degree of maternal health and well-being during and after pregnancy, the delivery of a healthy newborn, and the ability of the lactating mother to provide for her newborn’s nutritional needs. This slideshow, adapted from chapter 2 of CRC Press’ e-book, “Perinatal Nutrition,” will explain the changes a body goes through during pregnancy, as well as the nutritional needs to ensure a healthy pregnancy.