So my son just turned 3 months on Tuesday and already he flipping over starting literally on Tuesday…

So my son just turned 3 months on Tuesday and already he flipping over starting literally on Tuesday but yesterday he tested the waters all day and keep flipping over by himself well now because he know he can do it he kept flipping over all night I just woke up & saw him flipped over I got freaking scared that he was on his nose so I put him to sleep with he's dad because I gotta leave to work and I'm scared idk what can I do to stop him from flipping over in he's crib