⚠️⚠️ HELP LADIES⚠️⚠️

Just found out I have gestational diabetes. Like not even doing the 3 hour test bc my number was 204? I don't even know what that means or what food I need to be eating to control It? I know low sugar and I've heard low carb. Any one care to walk me through It? I have a meeting with a dietician this week but I can't wait to get this under control and start eating what I need to be. TIA 💗