Due date

Megan

Ok y’all my last cycle started on Jan 9th but my dr said I ovulated late and my dues date is oct 39 which puts me at 30 weeks tomorrow when I went to the dr at 29 weeks the fundal height was 33cm 4 weeks ahead I know I have big babies (1st baby was 3.5 weeks early and 9pbs 12 oz 2nd baby was 3 weeks early and 8lbs4oz and my 3rd was 2 weeks early and 7lbs14oz) so I am just wondering if y’all think they messed up on due date or if she is just gonna be another big baby