Study Purpose: This study aims to help pregnant and postpartum women with HIV stay in medical care after they have their baby. This is important because staying in care helps keep the mom and baby healthy.

Study Details: The study will use a peer intervention. This means that women living with HIV (WLH) who have stayed in care will help other pregnant WLH by sharing their experiences and offering support. The intervention is called WISH (Women Involved in Supporting Health) and involves three prenatal (before birth) and two postpartum (after birth) face-to-face sessions, plus communication through texts, calls, or video chats. The study will happen in several U.S. cities with high HIV rates among black and Hispanic women.

• Duration: Involves sessions during the last months of pregnancy and up to three months postpartum.
• Participation: 260 pregnant women will be part of it, either in the WISH group or a control group.
• Requirements: Participants must be over 16, speak English, have a cell phone, and be willing to stay in the U.S. after delivery.