"If it is not fixed then I'm gonna cry..."
Senior programmer: "See, now you're getting it."
You're very much welcome.
I do want to clarify something though. Yes, futa is hit or miss. BUT, so is pretty much any fetish that isn't considered standard, preg included. Don't let that discourage you in any way. This game, despite being rather bare-bones as it is right now, is already better than some complete games out there that bear the pregnancy tag.
Thank you very much for the reply. I'm even more psyched(?) for it now.
As to what people might expect considering the list of features that you named, well...
Breast expansion(BE) usually(but not always) has some connotations to it, like lactation (and breast preg for the really hardcore preg fans).
Multiple simultaneous pregnancies are pretty popular(at least on the discord that I'm part of). It's up to you if you want to expand(hehe) it further to outright hyperpreg.
Futa can be hit or miss. In this case, I'd want to know what the protagonist would use it for, and again, there are some pretty out there fetishes when combining futa and preg.
All that is just my take though, so I might be wrong on every front.