fluffy baby

Can someone tell me, normal lang ba na ang baby ko not as fluffy as other babies at a month old? nakikita ko kasi mga kasabayan ko their babies are fluffy, mine’s normal not too fluffy, not skinny naman din. i purely breastfeed her and had her monthly check up last week all are good and well naman. may same exp ba? nakakarindi din kasi pakinggan ibang tao na kinocompare baby ko with other babies of the same age.