So my almost 8 week old has been in size 1 diapers since birth. He was a big baby when he was born. Hes grown a bit, but has a small waist. The tabs still touch in the middle on the size 1 diapers. Recently, he started pooping so much that it's starting to leak out the sides and up the back. I know that's a sign that it's time to go up a size, but his waist is so small that I think the next size will be way too big. Anyone else have this problem? What should I do?