To be honest, I do not think he is constipated, but I am no doctor. If his stool looks like normal breast fed stool, then I think he is fine. If he was straining and straining, and then what came out were little pellets or something that resembles a tootsie roll (sorry TMI) then that would be defined as constipated. I have read that sometimes an infant’s anus’s loosens up sometime after birth, meaning the muscles contract, which is why when they do have a bowel movement, they have to push so hard. (Don’t quote me on any of this; I might be saying it wrong. But I do know I read somewhere that there is a valid reason why they seem to have to push with all their might and turn bright read and sometimes chartreuse!) Maybe your little guy is just an early bloomer in this department. Perhaps when he is doing all that pushing, he is actually gassy? Does his tummy feel hard when you message it?