[galaktiusman]

Well I completely agree that she is a beauty! I had a new cat a few years ago and I thought she was just getting fat because of how much she was eating and because we were keeping her inside until she was spayed. But, one day my mom felt around on her tummy and said "I think she's pregnant." Doing the math she must have gotten pregnant RIGHT before I got her *sigh*. So I guess you could wait and see if she gets a plump belly.
I just read on this site http://www.catsofaustralia.com/pregnant-cat.htm that 22 days after mating a vet can tell by ultra sound.