There might be some really out - of - the - box fanfictions out there with such a title, but it goes against the general essence of the 'Twilight' saga. Edward is in love with Bella in the main story, and the idea of him killing her, especially in relation to a baby, is quite a departure. It could be a very dark exploration by a particular fan writer, but I haven't come across it specifically.
I'm not aware of any official 'Edward Kills Bella' baby fanfiction. In the original 'Twilight' series, their relationship is complex but not of this extreme nature. Fanfiction can vary widely in themes, but this seems like a very dark and uncharacteristic take compared to the source material.
Some fans might create such a disturbing fanfiction as a form of extreme dark - themed exploration. They may want to break away from the typical love - story - esque nature of the 'Twilight' series and create something that shocks and stands out.
It could also be an exploration of character development in extreme situations. What would Edward become if he did such a thing? How would the other characters change? Writers might use this extreme scenario to show how the characters would react and grow, or in this case, maybe degenerate in a different way compared to the original story.
Perhaps it's related to his internal conflict regarding his relationship with Bella. He might be feeling so much guilt about bringing her into the dangerous vampire world that he has a moment of self - destructive behavior where he almost kills her. Or it could be a plot device used by the author to create more drama and tension in the story, making the readers more engaged as they wonder how Bella will survive and how their relationship will recover from such a traumatic event.
She could be in shock. Bella might initially be too stunned to react immediately. After all, she trusted Edward completely, and this event would shatter that trust. She may withdraw from him emotionally, at least for a while, as she tries to process what happened.
Their relationship would likely become more intense. They would have a new bond through the baby. Edward would be even more protective of Bella, not just because he loves her, but also because she's carrying their child.
Well, it might become stronger as they face this new challenge together. They have to rely on each other more for support and decision - making regarding their baby.
One unique feature is the exploration of their new roles as parents. Bella and Edward have to deal with the normal human aspects of parenting like feeding and diapering, while also considering their vampire - human hybrid baby's special needs.
One challenge could be financial. Raising a baby is expensive. Another might be dealing with family opinions on how to raise the child. And there's also the physical exhaustion from taking care of a baby.
One 'Edward kills Bella' fanfiction might explore a dark, alternate universe where Edward is forced to kill Bella to save her from a worse fate, like being turned into a mindless vampire by a malicious vampire. Another could be a story where there's a misunderstanding and in a moment of rage, he accidentally kills her, then has to deal with the guilt.
The baby would also be a significant character, even if it might start as a newborn. Its presence changes the dynamic between Bella and Edward and influences the actions and decisions they make throughout the fanfiction. And depending on the plot, other characters like Jacob or members of the Cullen family could also play important roles. For example, Carlisle might be involved in providing medical knowledge about the unique situation of the baby. Or Jacob could be there to offer protection from the werewolf side, given his connection to Bella and his pack's loyalty.