No! Unless the child is unborn.
No, that is up to you! We are buying a house so donations are welcome, but your presence is gift enough.
No, sorry. Invite only! I would have contacted you directly or put it on your invitation if someone was invited to come with you.
As soon as you can - I need to make a seating chart!
Yes, in front of the building and around the general vicinity.
Formal/Semi-Formal.