I was talking about this with my MIL today actually. She's a retired MW and I was saying how many women are told their baby "should" be head down at whatever week, and actually it doesn't even matter until about 36 weeks.
In my first pregnancy she was head up until about 35 weeks, when she suddenly turned into the head down position. Nobody was concerned and I was certainly not offered any scans or any offers to manually turn her. Before that the baby is still able ot turn so easily, and even if they're head down at one appointment, 10 mins later they can be head up again.
At my 29 week appointment with this baby she was head down, but I know for a fact she was head up yesterday. She still has so much space in there that she's able to move quite freely still
I hear of so many women that are told it's bad etc, when it really doesn't matter so early. It only matters once you hit 36ish weeks.