M.H.
Yes he might be out growing the nap. The only thing if you are expecting a new one. You might want to get him up earlier to still take the nap. You are going to be tired the last trimester and you might want to keep it. Sometimes the best thing to do is put them in a crib and let them cry to sleep. I know this is a hard thing to do. I would not just let him in his room and just play. They can get into everyting.
A mother of 3 boys.