Growth scan

So I was recently diagnosed with GD so went for a growth scan at 28 weeks, baby was measuring 2 weeks ahead & in the 93 percentile.

I’m now 32 weeks and had another scan today & she’s in the 91 percentile but measuring 3 weeks ahead & weighing 5.1 pounds.

Just a little confused as she can drop in the percentiles but then be measuring a lot further then she was the previous scan.

Any other soon to be mums had something similar?

I’m worried their going to try and push a c- section onto me, I want to do vaginal but I feel like their going to use her weight against me 😩