When did you ladies Start letting your baby sleep on their belly?

okay at night if they can flip n turn n sit up by there self is safer

She can kinda sit up by herself but she does the tripod sit where she leans over her feet lol she keeps turning onto her tummy at night or whenever I put her in her crib and it scares me every time @mommytobekarlito

so she can flip and turn and how many months is she

7 months @mommytobekarlito

she fine then