I lost a doe last year this time, kits were three weeks and 10 of 11 survived. Not the idea situation.
I have a litter of 6 week olds in with mom, usually I wean sooner, but this is my Convention litter and I want them to be a big bigger. When mom is ready to kindle again they will go. Mom is huge, and I had not expected that. She had her first oops litter at 5 mos, and the breeder did not think she would reach senior weight, but she is easily 8lbs and she looks fat, so I bred her again.
I want the kits weaned early mostly because I think mom is eating too much of their food, or because they are eating all of moms food.
But no one, kits or puppies, leave my house before 12 weeks anymore.