This study will determine the level of antibiotics in the umbilical vein cord blood of newborn infants after the administration of penicillin orally while in labor and compare these levels to levels of penicillin in the umbilical vein cord blood of patients treated with intravenous penicillin in labor. Comparisons will be done through literature only; there will be no intravenous penicillin administration arm of the study.