I think I prefer Mila or Mira to Mia, just think it flows better when said out loud. My (Croatian) friend has a daughter called Mila, I think it's so sweet!
If this LO is a boy then middle name will defo be Peter- it's my dad's & his dad's first name & DH is keen on the idea of honouring his dad, but it's handy that they're both called that! So it's likely to be Reuben Peter or Daniel Peter for a boy (although we may still change our mind!).
For a girl we'll probably call her Lily, as I've loved that name since I was in my teens & it was my dad's Mum's name (who I never met), so most likely Lily Beatrice or Lily Elspeth. If she really doesn't look like a Lily, we'll maybe chose Jasmine or Lauryl... My middle name is Margaret too, after my dad's aunt who brought him up after his mum (Lily) died.
In other news, my LO is a little rascal & has turned to the breech position! I kinda suspected it (as could feel hiccups further up) but was confirmed by midwife this morning! Naughty baby!