Is it just my baby inside me or .... ?

Mari🎀 • 1 baby girl avoiding having another for now
So im 32 weeks pregnant and sometimes I hear like if I cracked my baby's bones , ( a knuckle crack ) I heard the sound on my right side , but idk if it's my baby . I mean she still moves a lot but I'm curious to know what that noise is , is it just my baby/me  or do some of you girls hear it also ?