I am so sorry Mindi I think the help you are giving looking after your DGD is beyond price. Going by my experience with DH's cancer (with both children grown up) I think anything you can do that will let your DD concentrate on her husband while you try to keep a semblance of normality for your DGD and keep an eye on the pregnancy will be so valuable.
I wish I could offer more than sympathy, but I hope you can find the strength to get though this. 
Why on earth would anyone plant.....
What is the most random school memory you have?
England vs Mexico -BBC great idea!
Only 50% of middle age adult manage more than 1 brisk 10 min walk a month.
