Yeah, it was in my birthing from within book. You can try googling "breech tilt" and see what it comes up with.
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I'll write some of what it says in here.
""If between 32 and 35 weeks...lie on the floor and use cushions to elevate your hips to about a 30 degree angle. the inverted position can help the baby's bottom fall away from the pelvic brim so that when you stand up, the floating baby can turn, because the baby's head is heavier than it's bottom. Tilt for 10-15 minutes, two to three times a day until the baby flips. simultaneously, try playing music or buzzing your electric tooth brush against your abdomen to try to get the baby moving. If your baby is still breech at 36-37 weeks, your doctor may suggest external version to manually turn the baby (70-90 % success rate). Your breech tilt can be even more effective if you practice deep abdominal-pelvic relaxation through visualization or hypnosis. ""
That's pretty much what the book says. Maybe your doc can tell you if it sounds like a good idea but it doesn't really sound very dangerous to me.