Well, in 'The Darkest Hour' fanfic, Hermione tragically dies in a final battle against a powerful dark magic. This fanfic reimagines the events of the original story with a more tragic outcome for Hermione.
There are many different takes on this in the fanfiction world. It could be that the labor complications are part of a dark and angsty storyline where Hermione doesn't survive. But often, fanfic writers like to subvert expectations. They might have Draco play a crucial role in saving Hermione, perhaps using some magic or a newfound bond between them to overcome the complications.
She would be devastated. Hermione is a very emotional person deep down. She might isolate herself at first, not wanting to talk to anyone, even her closest friends like Harry and Ron. She'll probably go through a phase of denial, not believing that her parents are really gone.
It could be in a dark and tragic alternate universe fanfic. Maybe there's a powerful curse or a fatal magical battle that leads to her death and transformation.