The community-based health volunteer (CBHV) system has an inbuilt data collection system managed by a community drug keeper (CDK) and a supervising facility-based health worker to monitor distribution at the community level. Investigators used an outcome form to collect data. Data captured in the outcome form included the condition of the newborn and mother at birth, of the newborn at birth—live birth or stillbirth—at days 7, 14 and 28 postpartum. For this study, the investigators modified the outcome form to also capture the number of SP doses a participant received and date/month the participant got them. The modified outcome form also collected data on a pregnant participant's primipara status, ANC status, gestation in months at time of delivery, the state of newborns (live or stillborn), sex of the newborn and head circumference measurements.