babies

How can you tell that a cat is fixing to have her babies, and how many babies she will have?

This post may help to answer some of your questions.

http://www.thecatsite.com/forums/showthread.php?t=46743

As for your question of how many, some vets can palpate a pregnant female and be able to take an educated guess - but the most reliable way is to do an ultrasound. I don't like X-Rays on a pregnant cat ... even if most vets say it is fine, I am not comfortable with it.