A really interesting plot point would be the baby's development. Since it's a vampire - human hybrid, it might have some extraordinary powers even in the womb. This could lead to some dangerous situations, like attracting other vampires or werewolves. Also, Bella and Edward could start planning for the future, like where they will raise the baby and how they will educate it about its unique heritage. They might also face challenges from the vampire community who might see the baby as a threat or an abomination.
One interesting plot development could be the reactions of the Cullen family. They might be overjoyed at the prospect of a new addition, but also worried about the potential risks involved since Bella is human. Edward would likely be extremely protective, perhaps even more so than before.
One possible title could be 'Bella's Miracle: Pregnant with Edward's Baby'.
The main characters are obviously Bella and Edward. Bella is the human who is pregnant, and Edward is the vampire who is the father of the baby.
The plot could involve Bella coming to work as Edward's nanny. There might be an initial awkwardness as they adjust to their new roles. Then, as they spend more time together, they could start to develop feelings for each other that go beyond the employer - employee relationship.
One idea could be the challenges Bella faces during the pregnancy, like dealing with her changing body in a unique vampire - human hybrid way. Maybe she has super - strong cravings that are related to both human and vampire desires.
Well, one possible plot development could be the internal struggle of Bella. She might be conflicted between her feelings for Klaus and the implications of having his baby. For example, she could worry about how the baby will fit into her existing life or the reactions of those around her. Another aspect could be Klaus's reaction. He might be overjoyed and protective, or he could be hesitant due to his complex nature and the many enemies he has. There could also be a plotline where they face external threats because of the baby, like other supernatural beings who either want to harm or use the baby for their own purposes.
One possible plot could be that Bella and Jacob initially struggle with the situation. Jacob might be overjoyed but also worried about how others, especially the werewolf pack, will react. Bella could be conflicted as she has a complex past with Edward. They may face challenges from different factions in their supernatural world, but ultimately decide to face everything together for the sake of their unborn child.
One interesting plot point could be that the baby boy is born with a mark that gives him access to a secret realm. Bella has to figure out how to keep him safe from the dangers of this realm while also allowing him to explore and learn about his connection to it. Additionally, the baby boy could have an innate wisdom that surpasses his age, and he starts guiding Bella and those around him in unexpected ways.
One plot point could be how the Soul Society reacts to the news. Since Byakuya is from a noble family, there might be a lot of expectations and politics involved. Another could be Rukia's own concerns about being a mother while still being a Soul Reaper. She might worry about how to balance her duties.
A great plot twist could be that the pregnancy is not as straightforward as it seems. There could be some sort of magic or curse involved that changes the nature of the baby as it develops. For example, the baby could start to show signs of being a different species than expected. Also, what if there are other characters who want to claim the baby as their own for power or some other ulterior motive? This could lead to a lot of conflict and drama in the fanfiction.