Does anyone have to do the Glucose test early???

Christiana • My name is Christiana. Have a beautiful little girl and an amazing man. Here for guidance and to help others if I can😊
I have to do mine early because of my BMI does anyone else have to? I've even lost weight but they are still making me do it. 
I'm really nervous, I'm much heavier than I was with my first pregnancy and I'm really scared of GB.