Which diaper size ?

Shay

So my daughter is 10 months and weighs about 17-18 lbs. size 2 diapers are a little snug on her and we experience leaks often and size 3 are kinda loose on her and when she pees they sag 🙄 idk what to do it’s not like they make half sizes. I’ve just been using the 3’s but it seems like I’m changing her more often because of the sagging