Type 2 diabetes

I was diagnosed with type 2 diabetes the same day I had my pregnancy blood test confirmed (I'm due 9/28) started testing my blood after every meal and it is always high at night and fasting in the morning. Despite daily exercise and a healthy diet. 
Does anyone else have type 2 that can offer some diet advice? I don't see my nutritionist until Thursday and I'm very worried I'm going to harm the baby