Baby sleeping face down

Lo has just figured out how to stand up in her bed so has been exploring this during naps/bedtime. She has always been a back sleeper but has now taken to sleeping on her tummy! This is all very new, I’ve noticed she’s been facing down instead of tilted to the side and i’m not sure if this is safe or what I can do to help prevent this. It’s worrying me and I keep checking on her instead of sleeping as i’m worried. She is also 10 months.

Any help would be really appreciated! ✨