First trimester GD? Early..

I had GD in my last pregnancy. (11 months ago 🤦🏻‍♀️) my obgyn did an a1c rest last week (+\- 7 weeks pregnant) and it was normal and was told we would check again at every appointment. She had me get my meter out to start checking, my 2 hour after meals sugars are 120-140, and my fasting is the same. I called because I thought my fasting (first thing in morning) sugars should be lower? I’m awaiting a call back but I also feel like it’s too early for it to be pregnancy related? I’m overweight, but have always had fairly normal sugars until my last pregnancy. This morning I got up after not eating for 10 hours, and my sugar was 138 and I’m so confused.