What happens next?

How to tell how old a kitten is
Look for an umbilical cord stump.
If you find one, you can be sure you're dealing with a newborn kitten.
The mother usually bites the cord until it breaks.
The remaining " stump " will be a small piece of tissue hanging off the kitten's belly. Cats' umbilical cord stumps usually fall off in the first 3 days of life.