When you're pregnant or nursing you have to make sure that you get the complete nutrients necessary for your baby. It's ideal that you will get rid of the candida before you get pregnant so you're not forced to be on a specific candida diet. It will be much easier for you.
Pregnancy is difficult as it is when you do not have candida. When you combine pregnancy with cravings, and restrictions on what you can it, it wil make it several times more difficult.
I believe that you can eat small amounts of fruit, high quality carbohydrates, sugars, and really just make sure that the baby comes out healthy. It's really a tricky situation, and try to make sure that you do not do anything too extreme.