Last night was a repeat of the night before. Up every 1.5 hours or so, with no peeing!! I checked her bedding and it's not wet or smelly. She wouldn't pee on the pads, until this morning when she peed SO MUCH. She must have a big bladder for such a small pup.
A couple of times last night, I slipped my fingers in her crate when she started whining. She went right back to sleep, so I guess it's a little bit of separation anxiety. Tonight I'm going to try that a few more times, and if she wakes up dry in the a.m., I will know that she can hold it all night and is ready for some 'tough love'.