Research on pregnant women includes studying various aspects of pregnancy, childbirth, and postpartum health. This can include exploring the physical and emotional changes that occur during pregnancy, the risks and complications associated with pregnancy, the effects of certain behaviors and interventions on maternal and fetal health, and ways to support pregnant women through the pregnancy and childbirth process. This research aims to improve the health and well-being of pregnant women and their babies, as well as to inform healthcare practices and policies related to pregnancy and childbirth.