Hello, Katelyn and welcome!
My name is XXXXX XXXXX it will be my pleasure to help you today.
I'm glad you started adding the baby food sweet potato in with the KMR and also adding water to the formula and this helped him produce a big b.m. within 12 hours. Make sure the baby food sweet potato doesn't contain any onion product or seasoning/preservatives of any kind. The small trace of blood you saw could have been due to the constipation and very large poop, which may have burst some capillaries as he squeezed it out, as you suspected. However, sometimes, blood in the stool may also indicate intestinal parasites. Continue with the sweet potato and watering down the formula to avoid this problem in the future and continue to stimulate him to eliminate after feedings by vigorously rubbing the genital and anal area with a warm, dampened washcloth or cotton ball. Wear gloves when doing this and handling the raccoon.
So far, you are doing a wonderful job, but It would be best to get this kit to a licensed wildlife rehab center so he can be with other baby raccoons, which is very important for socialization. For the moment, you can give him a small stuffed animal and surround him with soft towels so he feels secure.
There are two things you need to be aware of to safeguard your own health: many raccoons in certain areas of the USA and Canada do carry the rabies virus which is passed from the mother to the kits. Rabies, as you know, is contagious to humans, so be careful when you feed him and stimulate him to defecate, as he could be infected, but not showing any symptoms, yet. Here is more information:
Another important health issue with raccoon babies which can be transmitted to humans, is a type of roundworm (intestinal parasite) called Baylisascaris. It can cause a lot of damage in the human body and can even be fatal in human infants and children.It is passed through the stool. A large amount (96-100%) of baby raccoons do shed Baylisascaris eggs which cause a big risk to other animals and humans. Here is additional information for you to read, about this parasite:
This is another good reason for you to try to get him into a certified wildlife rehab center as soon as possible.
I hope all will go well with your baby raccoon!