In this fanfiction, you could start with the moment Zero discovers she's pregnant. She might be in shock and disbelief at first. Then, as the story progresses, you can show how she and Kaname start to prepare for the baby's arrival. They could have different ideas about how to raise the child, given their different backgrounds. Maybe Zero wants the child to have a more human - like upbringing while Kaname has his own vampire - centric views. This would lead to many discussions and even arguments between them, making for an engaging story.
The plot could develop by showing the internal struggles of Zero. She might be conflicted between her love for Kaname and her past as a vampire hunter. Also, the external threats to the pregnancy could be a major part of the plot. Other vampires or vampire hunters might see this as an abomination or a threat to their own existence.
One plot idea could be exploring Zero's inner struggle with his vampire nature in a more in - depth way while Kaname is trying to protect him from the darker aspects of the vampire world. Maybe Kaname discovers a way to temporarily suppress Zero's thirst for blood, but it has unforeseen consequences on Zero's emotions and relationships.
I'm not sure specifically about 'Kaname and Zero pregnant fanfiction'. Fanfiction can cover a wide range of themes and scenarios, but it might be a bit of a niche or even an unusual concept. You could try searching on dedicated fanfiction websites like Archive of Our Own or FanFiction.net.
Well, it could be a very unique story. Maybe it could involve some sort of magical or supernatural element that causes the pregnancy in a world where such things are possible. It might explore how their relationship changes because of this unexpected situation.
In this kind of fanfiction, it might be that the author wanted to create a unique and perhaps controversial storyline. Maybe it's set in a world where the normal rules of the original story are bent. The pregnancy could be used as a device to explore themes like love, responsibility, and the consequences of actions within the relationship between Kaname and Zero. It could also be a way for the author to show a different side of the characters, their growth or their downfall.
One plot idea could be a pre - story exploration of their relationship. Maybe show how they first met in a more detailed way than in the original work. For example, it could be a chance encounter during a dangerous vampire - hunter situation where they initially mistrust each other but then gradually realize they have a connection.
A really engaging plot could be a time - travel story. Zero goes back in time and meets a younger Kaname. This changes the course of events in the Vampire Knight universe as Zero tries to prevent some of the tragedies that happened, and in the process, he and the younger Kaname form a unique bond that is different from their relationship in the original timeline. There could be a lot of drama as Zero has to deal with the knowledge of what will happen if he fails, and Kaname has to figure out who this strange hunter from the future is.
There could be a fanfic where they are in a modern-day setting and they participate in a sports competition together. Kaname's elegance and Zero's determination would create an interesting dynamic. They might face difficulties like injuries and rival teams, but through their combined efforts, they achieve great things and also strengthen their bond.
I'm not sure if there is such a specific fanfic. Fanfiction can cover a wide variety of scenarios, but this one might be quite rare or not very common in the mainstream fanfic world.
One idea could be that they face challenges in their relationship due to the unexpected pregnancy. For example, Zero might be worried about his ability to provide for the family while also dealing with his own personal demons. Yuki, on the other hand, could be excited but also scared of the changes ahead.