I just was wondering if a cat looses the hair around her nipples when she is pregnant?

With my cat she didn't loose any hair around her nipples until the kittens started nursing and wore away the hair. I'm not a kitten expert though so I couldn't tell you...

Yes, usually cats and dogs will shed the hair around the nipples. It's mother natures way of making it better for the litter to nurse with out getting hair in the mouth.