Puerpera vs Puerperal - What's the difference?

As a noun puerpera

is (label) a woman undergoing puerperium; a woman whose uterus is still enlarged from pregnancy.

of, pertaining to or associated with childbirth.

(en noun)

(label) A woman undergoing puerperium; a woman whose uterus is still enlarged from pregnancy.

(label) A woman who has recently given birth.

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(-)

Of, pertaining to or associated with childbirth.

* extrapuerperal * puerperal fever * puerperal and nonpuerperal mastitis