Re: Not pooping....
I would try stopping the cereal all together (he doesn't need it anyway) and other "binding" foods like bananas, cheese, white bread/pasta. I would also back off on lots of different solids - maybe something you've introduced doesn't agree with him. Start offering just a few of the ones you started with and know don't bother him.
Try oatmeal (real oatmeal not the baby cereal). My DD really loved oatmeal with fruit. You can mix it with breast milk.
Give him lots of veggies and fruits. Babies really like watermelon and it's got lots of liquid.
This can be normal. Some babies just go through phases as their digestive track matures.
What is his poop like when he does go? Is it firm and dry? That would indicate constipation.
If it's still pretty loose and yellow with the solid food chunks, then he's probably not constipated, but just adjusting to a new schedule.
Mom to Laura (3/1/06)