So my 5 month old weighed in at 16 lbs two weeks ago. He was wearing size 3 Huggies but he kept leaking poop up his back and they felt a little snug. I tried size 4 but sometimes poop leaks down the leg holes because they gape a little.

Size 3 weight range starts at 16 lbs and size 4 at 22 lbs. is it too early to move up to size 4? Anyone else move up a size well before their LO hit the low end of the weight range?