puerperium

/ˌpuː.ɚˈpiː.ɹi.əm/

IPA: /P AO1 R P IH1 R IY0 AH0 M/

noun
  1. 1

    The period of time lasting around a month immediately following childbirth, when the mother’s uterus shrinks back to its prepartum state.

Source: https://en.wiktionary.org/wiki/puerperium