mommies - how old were your babies when they started to roll over? thanks

my baby just turned 4 months and she's started to roll back on her belly after rolling on her back.

Eddison was 2.5 months when he rolled on belly but has not rolled on back to belly yet

Okay Thank you @havynsmomma0625

4 months when they were able to roll onto their belly, 5 months when they were able to roll from back to belly and then back onto their back