gestational diabetes

Manda • 👦🏽 2/2/16 👦🏽 3/14/19 👧🏽 9/21/2020

I just want yesterday for my 20 week Ultrasound and Every ultrasound he’s been 2 weeks ahead .. Now he’s weighing 1 pound 3 Ounces . Now they think I have diabetes 😢does anyone know if it’s common this early ? I’m hoping its just a big baby 😫