I have a cat who about 3 weeks ago gave birth to one kitten. I checked her stomach afterwards, and it was soft and just as it was before pregnancy. There were no foul discharges, or any fever or any signs of any kittens stuck inside. Well, in the past few weeks, I found she's been gaining weight. She hasn't been around male cats since she gave birth. She's been eating the same amount of food, a bit more than normal. She is barely lactating, so I've been bottlefeeding the kitten. At first I thought maybe she was just putting on weight, but her belly isn't soft or mushy, it feels like the belly of a pregnant cat. I've heard of cats being able to have kittens days apart, but I wasn't sure if it was possible that she could be pregnant and going to give birth again so soon, especially with being isolated as she has been. She's in great health, and so do to financial reasons I can't afford a vet visit for a few weeks yet. I was planning on calling in the morning to find out if it was possible, but was referred to this site as possibly being able to answer if it was possible.