Rapid growth

We’re in almost the same boat 😂 my son is turning 6 months on the 27th and he’s 21 lbs and wearing the same size clothes and diapers as your LO, these babies are insane!

Same for my almost 6month old! She's 21lbs, 9-12 month clothes, size 4 days and size 5 for nights, and chunky thighs 🥰

My little guy isn't as chunky, he's only 16 lbs but in 9-12 mos clothes because he's so long! Just a lanky noodle 😂

My boy is still in size 3 diapers but he's wearing 12 month clothing because he's super tall he's still 20 pounds

Same mine just turned 6 months and it looks like we're moving onto size 5 diapers she completely skipped over 2 ran right by 3 visited 4 briefly and is off to 5. I thought dressing a baby was going to be easy as we have so much clothes yet nothing fits my chunks. Currently wearing 9 months clothes, she's both chunks and long

By 8mo my son was the size of a toddler and wore size 2t

My 1st was like this! My 2nd (November baby) is currently still in size 2 diapers and wearing 3-6 months clothes but closer to 3 month size 🥹

My 5 month old girl is big and tall she’s in 12-18 month clothing and 25 lbs, I cloth diaper so not sure on the size diaper but lord is she hard to hold for even just a few minutes 😭🤣

My little man hits 6m on the 23rd and is in the same as your LO. We bought him a pair of 18m shorts today because the 12m shorts are a little tight on his chunky thighs. We also tried in a size 5 diaper today and it fit pretty well, the 4’s are getting a little small so we’ll probably be sizing up there soon too🤣