Can i refuse the doctor to physically turn my baby out of a breech position?

Yes: You don't have to go through with an external version (that's the name for turning the baby) unless you want. You have to give consent for it, as there is some risk involved. Though unusual, you can go into labor, the baby's heart rate can drop, your membranes can rupture, and more. If you don't want to do it, your doc will want to do a c. Section, most likely, but that is your choice.

Technically, Yes: As a patient you have the right to refuse any procedure. However, delivery in a breech position may be much more dangerous for both you and your baby. Therefore it's important to know what your options are other than what we call a "version" or rotating the baby. You may end up requiring a cesarean section.