I had either weekly or twice-monthly growth scans from 20-weeks until 37 weeks in my last pregnancy. At 37 weeks I told them I'd had enough and they respected that decision.
They threatened that baby was going to be too small etc. She was born 7lb 13! At around the same time my friend was given a warning of a big baby and pushed towards being induced rather than risk baby getting any bigger. Her baby was born at 7lb 2! So in my experience, growth scans are wildly changeable and inaccurate. They're just a guide!
And likewise some women have bigger bumps than others (my friend was huge, which is why they kept panicking about big baby!).
It sounds to me a bit like they're just keeping tabs on things - which is wonderful. But also, I wouldn't put too much stock on what they tell you until babe arrives Although that's obviously all anecdotal!
Measured by eye!! Seriously?? That's ridiculous. How did she document the measurement in your notes if she didn't take one?
I was sent for a growth scan a few weeks ago because bump came up a tiny bit small with tape measure. The scan showed baby was perfect size. Although it was nice to know everything was ok I did feel as though it was a bit silly sending me for a scan when I was only a tiny bit under on the growth chart, even the Sonographer was annoyed!
There's no real way of knowing how big baby is! I had regular growth scans due to gestational diabetes and they estimated my baby's weight (2 days before he was born) to be 7lbs 2. He was born 5lb 12!!! Try not to worry too much. Your body has grown this baby, your body can birth this baby!
Had growth scans all through my pregnancy. Had one the night before he was born. It's said he was touching four pounds. He was born by planned c section the next morning weighing almost 6 pound. Don't worry about it and use it as another chance to see your baby
My son measured 52cm at birth and weighed 7.6lb, my daughter also measured 52cm at birth and weighed 8.6lb. I am 23 weeks pregnant with baby no. 3 and don't have much faith in them judging her weight by her measurement!