Birthing Places

I have a feral cat that is pregnant for the second time.  She is completely tame with me, sleeps with me and entrusted her first litter to me.  My question is, should I keep her in the house as she is very very near second birthing or should I let her out to choose her outside place.  She wants to go out constantly, but always comes back

I would keep her inside.  There are too many things that can happen outside to her and her kittens.

Definitely keep her in and make a nest for her in the house in a private place like a closet. Show it to her. Outside is much too risky.

Do you plan to spay her after this litter?