Vet exam

I rescued two female cats. One was a grey kitten I named cat, the other is a fluffy grey and brown tabby named Missy. They both need vet examinations that I cannot afford. I refuse to take them to the humaine society to be euthanized like most other strays. Both Missy and Cat seem to be in good health but Missy has a hard and bigger belly. I know she is not pregnant because she would have grown or given birth by now but it is unusual and I think it is possible that she has undelivered kittens in there. They are absolutely gorgeous and wonderful cats. I keep them indoors so I can manage without getting them fixed, although that would be ideal for obvious reasons. If anyone is willing to help me pay for the vet examination for these beautiful felines it would be greatly appreciated. I cannot bare to see them put down. Humaine Societies in Canada are over run with cats. Please give these two the chance to live the life they deserve.