vaginal birth vs childbearing

vaginal birth and childbearing both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaginal birth	Yes	No	No	No
childbearing	Yes	Yes	No	No

As nouns, vaginal birth and childbearing are synonyms defined as:

vaginal birth and childbearing: the parturition process in human beings; having a baby; the process of giving birth to a child

Other synonyms of vaginal birth include accouchement, childbirth.

vaginal birth (noun)	childbearing (noun)
the parturition process in human beings; having a baby; the process of giving birth to a child	the parturition process in human beings; having a baby; the process of giving birth to a child

vaginal birth (adjective)	childbearing (adjective)
	relating to or suitable for childbirth