You will still deliver when baby is ready. Plus it is possible for due date and conception date to be off a little by a week or 2. They just give us estimates. Baby can decide to stay head down or flip around some more before they get here.
My baby is measuring 2 weeks ahead and has always been head down, they even changed my due date! but here i am still pregnant at 41 weeks 3 days! But every pregnancy is different so hoping yours will come sooner!