At this point, I have about 6 more days til the grandchickens hatch. Two of the lavender ameraucana eggs did not develop, so I'm down to 5 eggs total. A couple of those had been in the fridge for a couple days, so that doesn't seem to have affected them much.
What does have me worried is space. I have three large brown eggs and two small bluish/green eggs. The small eggs appear to have totally filled up the egg space, while the other three are only taking about 70%, and look totally normal.
My biggest concern with hatching pullet eggs is that they'd run out of space before incubation time was complete. That seems to be happening. We'll have to see if I have a good outcome or not.