Baby is a few days old and has transitioned out of the meconium stage. His recent poops have looked weird... kind of like a hard turd with little chunky seeds/pebbly things. Almost like a small piece of a granola bar. He is EFF. Anyone experience anything similar or know what it might mean? Worried about constipation and that his tummy might be troubled but not sure what to do about it. It definitely doesn't look like the peanut butter texture I've read formula poops should look like!