Pregnant Hedgehog Feeding?

My precious little African Pygmy hedgehog ,Sophie, is pregnant. Everyday we feed her a handful of Purina cat food mixed with hedgehog pellets. And we will put a carrot in there too. And sometimes for a special treat we will give her some raw egg or wet cat food. Now, that she is pregnant, what things do we need to add to her food, so her babies are nice and healthy?