Hi Ashlee, you should not attempt to create a homemade diet for your dog (especially a pregnant one) without first consulting your vet. If your vet is not educated enough on the topic, they can point you to one who specializes in nutrition. There is a lot more to homemade food than just cooking some meat rice and veggies together.
In the meantime, I would get her on a good puppy food. Something with a decent level of fat, calories and protein. Foods like Farmina puppy, Annamaet Ultra, or Victor Nutra Pro to throw a few examples out there.
