Does anyone have a good pregnancy workout (YouTube/Vimeo/DVD) that focuses on core strength? I know I'm not meant to be doing crunch-like exercises, but I'm sure there are other butt/side/etc toning things that can be done....

I'm very newly pregnant and had just started Pure Barre. I used to do lots of core classes (pilates/ball balance), even while pregnant, but never got back on track with a new gym after we moved shortly after DD2 was born, so I was excited about getting back to my super strong core! I just want to feel like I'm doing SOMETHINnG for my body while pregnant so I donf leave all the hard work til I'm trying to juggle three little ones!