So...everyone always tells you not to count on other people's money until it's in your hands. And I think I just learned that lesson the hard way.
My mom told me she was in for a certain amount so I planned my budget using that number. She gave us part of it last December and I just asked her for the rest now as we have lots of big bills coming up. She responded back saying that she would send it minus a few things she paid for for the wedding (totally fine and expected) and her dress and lodging for the wedding. Excuse me?! I was dumbfounded that she would include that as part of our wedding money. I guess when we talked numbers, she meant, I have this amount to spend for your wedding as opposed to, I will give you this amount for the wedding, but that was really not clear to me.
So now we're about 1K short of what we planned. We have the money, so it's not the biggest deal, but it's still a lot of money that we weren't planning on spending on the wedding.
Just a warning to others as I never thought this would happen to me...and I still find her response incredibly strange.