What are your 4 month old diaper size?

3 n he is 17lbs

my daughter's is 15 pound in size 2 and 3 at night because she wears it all night

my daughter is in 2s I just follow the weight on the diaper

My boys will be 4 months on the 22nd & they are both in a size 2.

possibly 2. he's 16 months still in size 3.