A pregnant woman’s Rh factor (an immunoglobulin protein) is important information to know. If a woman’s blood is Rh negative and her baby’s is Rh positive, this could cause problems for her future pregnancies if left untreated. As OBGYN Dr. Ingrid Skop explained (emphasis added), “Evaluation of Rh status and provision of Rhogam, if indicated, has long been the standard of care for early pregnancy loss, including elective induced abortion. This action will prevent a mother from mounting an immune response to her future unborn children. If Rhogam is not given and isoimmunization occurs, 14% of untreated infants will be...