Middle name?

Lisa • Mother of three. Had first child when 19. She had a heart defect and other birth defects but is doing great now. Then had cayden two and half years later and finally my baby boy Skylar 2 years later.
We don't know gender yet but have name picked out for both genders but can't decide on middle name for girl first name will be Ellianna (elli for short) last name Gregg was thinking Mae but then I say elli Mae and think of a cow lol any ideas