Fundal height

Is there strong correlation between fundal height and how big baby will be? For most of my pregnancy mine has been 2 weeks ahead. However, 2 weeks ago I was 31 weeks measuring at 35 weeks. This week I am 33 weeks measuring at 38 weeks. I’m just wondering if I should expect a big baby. I had an ultrasound last week and she was estimated 4 lb 12 oz. I am having a scheduled csection so I’m not necessarily worried about pushing out a huge baby - I’m just curious 😁