In the wards receiving the CHW intervention , the CHWs : ( 1 ) identify pregnant women through home visits and refer them to antenatal care ; ( 2 ) provide education to pregnant women on antenatal care , PMTCT , birth , and postnatal care ; ( 3 ) routinely follow up on all pregnant women to ascertain whether they have attended ANC ; and ( 4 ) follow up on women who have missed ANC or PMTCT appointments .