A review is presented of policy and treatment guidelines for human immunodeficiency virus infection in pregnancy. Interventions that serve the best interests of pregnant women and their fetuses are suggested. Reproductive studies with animals should be done routinely, and more research with pregnant women should be conducted. Women and their health care providers need to shift away from the "therapeutic nihilism" paradigm. All clinical decisions must be made cautiously and thoughtfully, with the understanding that the health needs of the pregnant woman are usually whatever is in the best interest of the developing fetus.