Is Gemini looking around in a lot of different places lately? She may enjoy having a box in a closet where it's a bit dark, but with enough room for her to move around and clean off each kitten as they arrive into the world. And as Moosmom said they do (hopefully) chew the umbilical cords, and eat the placentas, but not always. Doing this is natural to a cat (and other mammals) and helps her to produce milk. If she doesn't do so, you should be prepared to cut the cords off yourself. I have needed to do this with new mamas, and all I did was tie off the cord about two inches from the kitten's belly, and then cut the rest off with scissors. Cats teeth use a scissor like motion which shreds the cord on the ends so it doesn't bleed, but humans can't replicate that one! It will dry up naturally in several days and fall off. Be sure you are feeding Gemini a lot of wet food, and kitten chow also, as it provides her with calcium which will not only help what came out of her own body to make the babies, but also helps her milk supply. I hope you take everyone's suggestions and get all the babies spayed and neutered along with mama before they leave. I rescue way too many kittens, and statistics say that out of a litter of four kittens, only one will have a forever home. Some will be dumped on the street, and some will end up in shelters that are already full. Michigan is one of those states where there's far too many adoptable pets already suffering, and it's the lucky ones who either find forever homes, or are euthanised humanely. Far too many end up on the streets, and it would be a shame for any of your babies to be to end up like that.