GD levels concerning

I had my GD test yesterday in Australia which consists of a baseline fasting blood test then 1 hourly and 2 hourly after the sugary drink.

My 2 hour fasting came back higher enough to be diagnostic for type 2 diabetes...

In first trimester I had no signs of prediabetes or diabetes when I had the hbA1c blood test so now I'm worried about WHEN I actually developed diabetes and have I cause harm to bub with uncontrolled blood sugars for potentially months??

Anyone else score really high?