1-Amount of detail in regards to pregnant individual, particularly if conception/etc are more paranormal/magical in nature and extent of suspending disbelief with stuff in the "hyper" range
2-Do you find that your standards have gotten more specific in regards to size and other factors? Personally, yeah, I find myself still weeding out pics, though it's hard to verbalize precisely what the standards I have now are beyond maybe A) belly can't be such that it feels unrealistic and unwieldy (especially when it overtakes the body) and B)The appeal is less there when the person is doing something that would generally be ill advised in pregnancy or would put them or the unborn at risk (not just passive stuff like smoking or drinking, but say, combat situations, that which cuts too close to real life with maternal mortality rates, etc)
1- Assuming I'm understanding you correctly, I find that it's easier to suspend my disbelief with hyperpreg if it's in a fantasy or scifi setting or scenario. Like, being knocked up by a dragon or alien makes explaining away the cartoonishly massive growth a lot easier then "Deborah form the PTA is just VERY fertile".
2- As far as specificity goes, and getting pickier over time... I actually think the opposite has happened, weirdly enough? Like... with size, I think what appeals to me has actually gotten less specific, with smaller and larger bellies being hot, instead of focusing on a "middle ground". A lot of other factors have started being more appealing to me, too. I didn't used to have such a thing for stretchmarks. I actually used to dislike and avoid them, those were an acquired taste that grew into their own subkink. Same with navel piercings, and veins... my taste in bellies has really only gotten broader. I mean, shit, I didn't used to like vore but here we are.
As far as like, scenarios that the pregnant character is in, I'm 100% with you, it loses appeal when it feels like harm could come to anyone. I'm a cozy, gentile lady, so I prefer the subjects of my belly kink art to be, at most, uncomfortable and inconvenienced, but safe. I think some unwieldliness is hot, and I'd go as far as to say I enjoy some stuckage, but never anything that puts anyone at actual risk.
