My DS is 5 1/2 months. He is eating oatmeal cereal and doing his normal bottles. For the past few days his pooping schedule has been off. He normally poops once a day but has gone a day without pooping and then either has a little bit of pasty (TMI) poop or when I do some leg "exercises" he poops out a pasty poop again. He hasn't been in any pain or anything but this is concerning me. Any suggestions what I should do to get him back to a normal poop consistency and schedule?