As I talked with Abigail at lunch today, she was animatedly discussing something when she mentioned a list of people that included her "brother". So here's what happened next:

Me: Abigail, did you say "my brother"?

Abigail: Yep

Me: But you don't have a brother yet.

Abigail: Yes I do

Me: Oh really?

Abigail: Yes, I do. His name is Isaac.

We lost our first pregnancy to miscarriage, but had already picked out a name - Isaac James.