Measuring big?

Bai • I am pregnant bubs no#4 and 25 years old
Hey just had a appointment today and baby was measuring 2 weeks ahead by the tape measure on your tummy. I'm just wondering if anyone else has measured big? She told me that she will keep a eye on it but I didn't think until after I left about why she would keep a eye. Has anyone had any problems with bigger babies? I have had average sized babies before.