Orphan Kitten?

is it a good thing to see my orphan kitten having a bowel movement and going potty? I am feeding it pre-made wal-mart kitty milk every 2-3hrs. I also keep it warm under a soft fleece blanket. It is only 2 days old about and seems very small. I can't think of anything else to do beside what I have be mentioned to on here. The vet's office does seem to think it will make it but I am going to be optimistic. I look for any kind and helpful advice I can get. Thank You!