No my son has been head down since I was about 27 weeks, I'm now 32 weeks. But like 2015BouncingBoy said greater chance in not having to have a c section.
Not necessarily. My boy has been head down since 13 weeks, he just never flipped. But I'm almost 36 weeks and still no sign of labor. It just means he's in the right position and boosts chances of not needing a section.
No and they can still switch from that position too