can babies flip around at 33weeks?

FTM. currently 33+4.

when I was 32+6 i got an ultrasound and got told baby was head down already. Today (33+4)i got another one and tech said she was head up.

is baby still able to flip up and down whenever she wants this far along ?? it’s only been 5 days so i didn’t think i would get told she’s head up now