Currently, physicians are increasingly inviting parents to share in the responsibility of decision making for infants at the margins of viability. However, parental preferences regarding such decisions in the perinatal period are largely unknown. It is also unclear whether such preferences are stable across time. Saigal and colleagues interviewed a cohort of high-risk pregnant women during their pregnancy, during the perinatal period, and 12 months after delivery. Even under stressful conditions, maternal preferences were remarkably stable during this time. The study stresses the obligation of physicians to elicit and consider parental values in decision making.