Of course you can ask for prayer and your own prayer can move mountains, so it's possible to turn a baby as well.
It's been years since my son was born, but I remember well waiting for him to come, tired from the labor and feeling alone. I come from a family who prayed daily. I ask my mother-in-law to call an aunt who's prayers often healed others. Within ten minutes, my son completely turned, like a quake within, and had he not been so big, would have been born effortlessly. I had not been told that he was breech, but at that point, I knew. He arrived: no complications, no stitches, no pain.
Ask. Pray, and expect harmony.