Ascension Saint Agnes Maternal Fetal Medicine in Columbia, MD, delivers high-risk pregnancy care for mother and baby. If your pregnancy becomes high risk, your OB-GYN may refer you to perinatal care and a maternal-fetal medicine (MFM) specialist. During your pregnancy with early and regular prenatal care and monitoring, you'll have ongoing guidance and support. Your MFM specialist listens to understand you and your needs, and works as a team with you and your OB-GYN.