Big baby previously , small baby now ?

Hello everyone ! Just looking on here to see if anyone’s had a ‘ normal sized’ baby at the 28 week scan and then he/she has gone above the line of the chart ?

Bit of background is that my son was a ‘big baby’ being born at 38 weeks with induction! I thought this baby was big too but shes only just measuring above the dark bottom line on the chart so that’s quite small for me and it also means that she’s not big like my son ! But what my question is has anyone had this and then the babies thrive after 30 weeks and put on a lot of weight and they become a ‘

big baby ‘’ or if she was to be big she would measure big now ?

Daughter weighed 2.8lb at my scan yesterday at 28 weeks !

Sorry all sounds a little complicated I i know sorry for the poor explaining !