puerpera vs female parent

puerpera and female parent both are nouns.

Word	Noun	Adjective	Verb	Adverb
puerpera	Yes	No	No	No
female parent	Yes	No	No	No

As nouns, female parent is a hypernym of puerpera; that is, female parent is a word with a broader meaning than puerpera:

puerpera: a woman in childbirth or shortly thereafter
female parent: a woman who has given birth to a child (also used as a term of address to your mother)

Other hypernyms of puerpera include mother.

puerpera (noun)	female parent (noun)
a woman in childbirth or shortly thereafter	a woman who has given birth to a child (also used as a term of address to your mother)