Another big baby?


So I currently have 2 boys and I am pregnant with my 3rd. My first son has a different father he was born 10 days before his due date and only weighed 6.13 my second boy was born 4 days after his due date and was 9.2 I'm just curious if you think this baby will be big like his brother? My mom had 5 kids and the more she had the more we weighed at birth. I don't want to birth another big baby it was definitely harder to push him out.