Fundal height measurements are known for being outdated and inaccurate. They can’t measure the size of your baby by your belly so it’s very likely that when you have a growth scan your measurements will be fine. There’s so much that can go into your bump size also depends on the midwife as they all measure differently. I would try not to worry x
As above, they are so inaccurate try not to worry. Babies positioning could have just affected the measurement to be bigger this time. I had the same measurement (just over 90%) for my first appointment and got sent for a growth scan and she’s actually 31%. I don’t have any further follow up scans, bump still measures bigger (around 90%) It’s common with 2nd babies to have a bigger bump.
What I would say is that measuring the fundal height is all down to personal opinion and so easy to incorrectly add a cm on! 2 Midwives measured mine on my last appointment and one got 36 and one got 32!
We’re due date twins! I actually have the opposite, I’m currently measuring small below the 3rd centile line. A midwife told me not to worry too much as I am tall and have a long body. Your height and torso length might be affecting the result too?