Baby B breech and dr. Still recommends vaginal birth

Kristi
Hey ladies! I'm 35+6 and as of last week baby A was vertex (head down) and baby B was breech... Since I've had a successful vaginal birth before my dr. Still recommends having a vaginal birth.. Says there is a 75% chance baby B will move head down on its own or flip easily due to all of the room in the uterus after A is out .... Anyone have a similar experience? Thanks!