I would keep her inside, but give her planty of space. If she can have her own room, with a few nooks and crannies to hide the babies, she should be fine. Maybe even prepare a few different kittening boxes in the places she likes to hide.
Whenever she begs to be let out I would give her some alternate thing she enjoys, like a treat or a brushing, or even some play time.
Whenever she begs to be let out I would give her some alternate thing she enjoys, like a treat or a brushing, or even some play time.