I would just wait until she is ready I swaddled my lil boy in his miracle blanket up until he was around 6mths old obviously after 4 mths he would get out of the miracle blanket, I knew to stop once he was able to roll in his miracle blanket and at around 6mth he has full control ova his arms so they didnt startle him. She will let u know when she is ready!! HTH
Nat and Kylum!