Worried

Kirsty
Hey everyone
So today I was booked in for my 12 week scan, my estimated due date was 16th August as last period was on the 12th November, but the sonographer had to do a transvaginal scan and found the baby and it's only showing that I'm 8 weeks, thankfully baby seemed absolutely fine and a nice strong heart beat.
I'm just worried as to why the baby isn't bigger? Has anyone else had this?