this app is not accurate

Queen👑 • AllAboutMyQueen👑🚼👩😍

how can a baby keep only measuring 2lb and a few oz if 3 wks went by my baby is 30+w and weighs 4lbs and some oz like I need accuracy I'm trying to make sure things are correct I know BC I was in and out the L&D; several times BC I keep getting super ill so they stabilized me and checked on her every time last time I went 3w ago she was 2lb9oz now she's 4lbs4oz

and weighs the size of a large melon or bag of sugar jeez the apps 😕 and she's strong as 4 puppies 😂👶💪💪💪💪