Well Sarah,
You can put a bit of Olive/Mineral oil in his formula. This helps smooth his track. Here in TDKland, we recommend Goats’ milk for kittens. Cats are lactose intolerant and can’t digest cows milk. Goats’ milk is full of nutrients, probiotics and gentler on their tummies. This can also regulate the poop. You can find it in the dairy section or the concentrate in the baking aisle. Mix the concentrate 1:1 with water or pedylite. If, at any time, they seem lethargic put a dab of Karo syrup or honey in their mouth. Goats’ milk is less expensive than KMR.
Sometimes, kits will poop on their own. He needs to poop and that may be what happened here. You will still have to teach him how/where to him poop.
Here’s some links to low cost clinics. I’m sure someone can help you.
http://www.kryssrescuecenter.com/low-cost-veterinary-clinics.html
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