Hi,
I never used protien or anything unnatural while pregnant both times. I do not trust protien powders while pregnant because there are some chemicals in the powder that could harm the baby. Just to be on the safe side, I wouldn't use it until after the baby is born. I would not use it while nursing either if you're planning on to nurse your baby. Some doctors may say yes but what do they really know?? I do not trust everything the doctor says either. Just for the peace of mind, try to avoid it if you can. There are PLENTY of other food that contain protien other than meat. You have nuts, beans, whole grains, eggs, etc.... Also, it's possible your body might not need more protien right now. You might have enough protien in you for now which is why you're not craving protien. I felt that way with my second baby and my doctor said it's a no big deal but I have to make sure I do not go too long without protien. Hope this helps.
Lisa