How many weeks for a membrane strip?

Destynee • PCOS • 2 natural born • pregnant with our letrozole baby🤍

Is anyone getting their membranes stripped before 39 weeks? As of Friday My cervix was/is still 4cm in length but soft. I want to see if my doctor will strip my membranes this week at my appointment but I don’t know if that’s allowed or not. I’ll be 37 weeks at my appointment. I should add he is already 6 pounds!