VBAC frustration

Today I had my weekly appointment with my regular doctor.  She kept making comments about how a VBAC isn't looking good because I had no progress as of Friday.  Then she tried to say how size could be an issue even though baby measured 58% at the growth ultrasound today.  I just didn't like how she kept mentioning that baby may have to come via c/s for this reason and that reason.  I even had to have her reiterate herself that I'm allowed to go to 41 weeks because even THAT sounded questionable from her.  I guess this is the point where I have to stick to my guns unless medical necessity comes into play.