Final answer:
A childbirth educator commonly takes the role of a doula, providing non-medical support during childbirth, whereas a midwife, obstetrician, and pediatrician have distinct roles focusing on medical aspects and care during and after pregnancy.
Step-by-step explanation:
A childbirth educator is often referred to as a doula, although the roles of a doula, midwife, obstetrician, and pediatrician differ significantly. A doula provides non-medical support during childbirth, focusing on the emotional and physical comfort of the person giving birth.
A midwife is a trained healthcare professional who assists in the medical aspects of labor and delivery. An obstetrician is a doctor specializing in childbirth and the care of individuals during pregnancy, while a pediatrician provides medical care for newborns and children.