Best home, prenatal workout videos for sculpting/cardio

Karmalife

I have a gym membership but with my new work schedule of around 48 hours it's hard to get there as often as I did pre-pregnancy.

 I am used to cardio like the elliptical and spinning bike and I have been weight training regularly since I was a teenager (now 34). Can anyone recommend a good, hard at home workout video? I have weights, resistance bands and a stability ball. Oh, and I'm 15 weeks!

 Thank you!