Pregnant women are evaluated with interval pregnancy/exposure history and a clinical exam, including the Systemic Lupus Activity Measure (SLAM). Assessments are scheduled every 3 months as follows: visit 1 when the pregnancy is confirmed, visit 2 during the second trimester, visit 3 during the third trimester, visit 4 at 3 months postpartum, and visit 5 at 6 months postpartum. Visits 4 and 5 include an infant exam for growth and morphologic parameters; these visits occur on the same schedule if there is a miscarriage or stillbirth.