I know this is OT but I just wanted to add to this as I don't want people reading this and panicking about their BMI and how they will be treated whilst pregnant. I'm currently 33 weeks pregnant and started with a BMI of 31. Based in the UK.
At my hospital I've not had this experience. I haven't been classified as high risk, nor have I had consultant appointments. Weirdly no one has even been monitoring my weight during the pregnancy. I did have the GD test as a result of my BMI but this is honestly fine and you can refuse. Induction in the UK is a bit of a complex topic but they can't induce you without your consent. Also the NICE guidelines (or maybe WHO - sorry can't remember which) states that a woman's high BMI shouldn't be allowed as a reason to limit their birth choices. But unfortunately some hospitals will.
However I do know this varies depending on what hospital you are at so appreciate that people may have had different experiences. Annoyingly there is a bit of a clash between what a hospital's policies are and therefore what they tell pregnant people vs what their actual rights are.
I may have just been lucky but I've found so far the NHS has been really good with me and I haven't been fat shamed at all. Ofc ideally we would all like to be at our best before pregnancy, but as Carrie always says BMI is not an indicator of someone's health (which is something I actually agree with her on). Muscle weighs heavier than fat so some athletes actually fall within a high BMI and they're obviously super fit. (But that's not to say I use this as a reason to ignore my BMI). Annoyingly BMI is also a bit of a complex topic so can been difficult to comment on.
Sorry back to Carrie now, I just wanted to add a bit of reassurance in case anyone was a bit worried about their BMI and pregnancy.