That depends how old the kittens are.
only for short periods of time--30 minutes
It looks like your Queen doesn't trust you around her kittens. She has hidden them from you.
The gestation period, or the length of time in which a cat is pregnant, is about two months, or between 64 and 67 days.
NO.
You should take your cat to the vet!
It usually takes about nine weeks for a mother cat to have her kittens.
She will come into heat shortly after having her kittens, around 4 weeks afterwards and will stay in heat until she is bred again. Why not have her spayed as soon as the kittens are weaned at around 4 weeks? Would be the best thing for her.
It depends. Kittens usually need to stay warm and healthy until they start to grow into an adult. However, if the mother takes good care of the kittens and has a father to help take care of them, they could grow up outside.
All kittens are cute. The trick is finding one that will stay cute.
Just a few days.
Well, unless someone also buys the mother cat, it think the mother cat may stay at the breeder/owners place of operations. And also they might be re-bred to give birth to new kittens.
My client witnesses a hermaphrodite cat have kittens, it looks mostly male from the outside but delivered kittens.