bump not growing

I didn’t have a visible bump throughout my pregnancy ( first pregnancy too ) , nurses were asking me if I’m sure I’m pregnant Everytime I go for checkup and even when I was about to deliver haha 😫 baby was born at 40wks exact at 3.002kg , 1st tri was 47kg and last tri was 63kg, I didn’t start gaining much weight till last tri , don’t worry mummy so long as all the checkups are going well it’ll be good !