How she do it

So ladies Ian my 4 month old on her play mat and I went in kitchen to wash a few dishes. I come back and is I literally the opposite way. Like she was up and down when I left and when I looked back at her she was side ways and facing the other end ( she has yet to roll front to back that I’ve seen and I’m at SAHM). Maybe she scooted

She was on her belly so I know she didn’t roll