Did anyone get their cervix checked at their 26th mark ?

Aryn

Ive been cramping so much for the past few days and I had a recent ultrasound saying I was weighing ahead and my due date is different from the one i was initially given. I was hoping my dr would check my cervix after taking the strep B test but she said it was too early. I’ve seen so many other women get it done on their 36th week so just curious.