I wanted to wait a little because of the way she's been yo-yo-ing, and still is. She's been with her dam and just getting her milk. I still give her a couple cc's ND at least once a day but I'm not tubing her anymore.
This morning she looked quite pitiful. She's still so small and not very active. She doesn't nurse vigorously but takes a few little sucks and goes droopy. She'll do that 2 to 5 times and she's had it. I keep checking mom's udder and it's never very hard so she must be getting quite a bit. I do milk some out to make sure she doesn't dry up. Her bout with diarrhea is over, finally. She'd had a bit of a relapse.
Tonight, she was walking all around the (very small) pen, nosing around into everything! She chewed on a piece of hay for a while. She even made a feeble attempt to jump a little!! I saw her punching into mom's udder pretty hard and she nursed a few times until her little belly was round.

Bless her heart. I go in an lay down in the pen and she cuddles up to me and roots my neck and face, then lays down against me while I pet her. I put them in a slightly bigger pen tonight 5' X 8', to encourage her to move around more.
Little thing probably doesn't weigh 6 pounds at a week old. The kids born Friday morning are three times her size already.
She's got a long way to go yet but I'm still amazed that she made it this far.