procreation vs facts of life

procreation and facts of life both are nouns.

Word	Noun	Adjective	Verb	Adverb
procreation	Yes	No	No	No
facts of life	Yes	No	No	No

As nouns, procreation and facts of life are synonyms defined as:

procreation and facts of life: the sexual activity of conceiving and bearing offspring

Other synonyms of procreation include breeding, reproduction.

procreation (noun)	facts of life (noun)
the sexual activity of conceiving and bearing offspring	the sexual activity of conceiving and bearing offspring