Tonguez
A suffusion of yellow
I would say that even if adventurers do not use these spells, seeing them in action makes the setting more real. No reason they cannot occasionally be added to a plotline in an adventure as a change of pace. If your party of heroes is hired for escort or bodyguard duty for a princess who is with child, your party cleric may well need one of those spells. Finding a Girdle of Birth-Easing in a hoard of treasure just adds to the realism of setting.
Calm Emotions is the most important spell for childbirth
then Command, for getting an exhausted woman to push.
Bless to improve saving throws.
Remove Disease for illnesses ( hypertension) and infection.
Cure Wounds for hemorrhage.
Heal to cure disease and regain hit points.
Druids casting Plant Growth on fields helps crop yield
and most real world folk magic tends to focus on weather control