Christopher was 21 lbs, 27 1/2 inches (almost the exact same size as your LO), so I know what it's like to have a cute little chubby one. He is already in 12 month clothes.
My little guy is 27 in and just barely under 22lbs. He's already in size 4 diapers and wears 9 month clothing. Some 12 month clothing handed down from my nephew! And my mother-in-law HATES when DS is called chunky or fat. She prefers the term sturdy. I love it!
Warning
No formatter is installed for the format bbhtml
at lo's 6 mn check up he was 28in long & 21.5lbs! he's in his last few 12mn things & mainly in 18mn, some 24mn rompers. he's got a long torso & i can barely snap things that aren't 24mns around his diaper. it's crazy! he's only a pound less than my 2yr old niece so i have a feeling he's going to stop gaining weight pretty soon (once he's more mobile)
Warning
No formatter is installed for the format bbhtml
Ford was 18 lbs 4 oz and 28 inches long! He has been crawling as fast as lightening this week. I think he has slimmed down a little but I haven't weighed him yet.
Re: 6 months- Moms of chubs come in!
Wow! Jay was 19lbs 10oz and 29 in long. So I know what its like to have a big little boy.(Or girl in your case)
My DS was a chubba-he was 20lbs 29in at 6 months.
My DD is a peanut-14.5lbs and 26.5in!