Depression is a serious illness that can interfere with everyday life. Researchers believe that it is one of the most common complications during and after pregnancy. Depression after pregnancy is called postpartum depression and may be caused by a rapid change in hormone levels during and immediately after pregnancy. Postpartum depression can occur anytime within the first year after childbirth and can negatively affect both mothers and their children. Mothers with postpartum depression may experience low energy, difficulty concentrating, irritability, and inability to meet their children's needs for love and affection. As a result, women with postpartum depression may feel guilty and lose confidence in themselves as parents. Research shows that children of mothers with postpartum depression may have delays in language development, difficulty with emotional bonding to others, behavioral problems, lower activity levels, sleep problems, and distress. This study will evaluate the effectiveness of a telephone-based depression screening and care management program in treating depression in postpartum women.