Any person shall be regarded as practicing midwifery within the meaning of this chapter who shall render medical aid for a fee or compensation to individuals during prenatal, intrapartum, and postpartum stages or to the individual's newborn up to two weeks of age or who shall advertise as a midwife by signs, printed cards, or otherwise. Nothing shall be construed in this chapter to prohibit gratuitous services. It shall be the duty of a midwife to consult with a physician whenever there are significant deviations from normal in either the gestational parent or the newborn.