OK, I get gd, this is my 8th pregnancy. Background info: I'm intolerant to metformin. Last pregnancy I was low carb and needed no medication, The first 2 pregnancies didn't need help and gd wasn't bad at all. All the others I needed very high levels of insulin. This pregnancy though I'm low carb my blood sugars are "high" but each time the insulin is raised my blood sugars go higher... it's actually very obvious. I will have the same meal for breakfast and get a reading of 9 but the next day WITH insulin it will be 11 for the same exact meal... My diabetes team just keep saying raise the insulin and add carbs... but it doesn't make sense... it's like I'm injecting sugar and not insulin! Carbs will raise my bgl hugely. Is there any advice someone can give me ur even a scientific explanation as to why my blood sugars raise with insulin.