My cat began delivery yesterday having one kitten. This is her second pregnancy. The first time all three kittens were born the same day, but at this time she had not delivered any other. I know there are more kittens inside her, because her belly is still big and moving. How much do I have to wait? Should I taker her to the vet?

According to the 4-H Cat book level three you have to be ner you cat at all times and tell the vet when the first kitten was born wheather or not it's a normal or breech delievery (kitten in breech would arrive hind legs first) you might have to take the cat to the vet for the rest to come by ceesarian section. After the birth of all cats the mother might go without food for 24 hours to take care of her kittens then she'll eat keep clean water near her. The cat must being tired to deliever if there are more kittens inside so my advice take the cat to the vet