My cat had kittens this morning at 6 am. He had 5 and I would like to know when can I change the blankets that they were born on?

http://www.angelfire.com/il/kimlance/development.html

Yes you can change the blanket (the website above changes them once an day). It isn't recommended to handle the kittens too much until they are about 3 weeks old, but a quick check up (no fleas, check if clean, weighing (kitchen scales, in a bowl same time every day), eyes) is all right.

The website is from a rescue group and they REALLY know their stuff! And it will help you figure out stuff before you eve think about it (its a bit long but very informative.)

Call the newspaper if "he " had five!!