I'd like to start off saying that I support spay/neuter 1000%, and that she's not my kitten. XD

So a couple weeks ago there was tiny kitten crying outside my window and I looked outside to see a kitten that's maybe 6-8 months old (tops). It wasn't until I coaxed her to me with food that I realized she had kitties on the way.

I thought she was quite far along, since I could feel and see them, and her nipples were rather swollen and pronounced. However 2 weeks later she's since double her body mass (at least!) and still no kittens. To give you an idea at how much weight she's gained, I was able to feel every bone in her spine without any difficulty. Now that she's fattened up I can't even feel the kittens.

Is there anyone experienced with pregnant mothers who might have an idea?

PS; she's been to the vet for a check up already. the $&@^# said that there's "no possible way to know" but I know that's got to be total bs.