DS is now almost 19.5 months and nursing 4 times a day (3 times on each side). He eats a good amount of solids (I think), and drinks water. He does not get much, if any juice, and has not been introduced to whole milk yet. My question is, how do I know if he's getting enough to stay hydrated? It's very dry where we are (CO), and I'm a little concerned. I CD, and was using rainbow diapers until I switched to toddler prefolds a few weeks ago. Since then, he only has 3-4 wet diapers a day...and they are not always soaking. Is there a certain amount of wet diapers that 18+ month olds are supposed to have?