In this kind of fanfic, another aspect could be how Naruto's relationship with the girl changes. At first, they might have just been friends or casual acquaintances. But now, with the pregnancy, they have to build a stronger bond. They'd need to figure out their living situation, how to support the baby financially in the ninja world, and also deal with any potential social stigma that might come with having a child out of wedlock in their society.
One possible plot development could be the initial shock and confusion for both Harry and Hermione. They would have to deal with the reactions of their friends, like Ron, who might be very surprised or even a bit jealous. Then they'd need to figure out how to balance their new situation with their fight against Voldemort or other magical threats. Another aspect could be how they prepare for the baby, from finding a safe place to live to getting all the necessary baby supplies in the wizarding world.
One possible plot development could be that Harry has to face the challenges of being a young father while still dealing with his wizarding duties. He might struggle to keep his family safe from the dark forces that are always lurking in the wizarding world.
Another aspect could be how the village reacts to Naruto having a large family on the way. There could be both positive reactions, like seeing it as a sign of Naruto's strength and legacy, and negative ones, perhaps from those who are jealous or worried about the resources needed for such a large family. In this fanfiction, it might also explore the relationships between Naruto and each member of his harem as they navigate this new phase of their lives together.
A plot could develop where Naruto and Tsunade try to keep the pregnancy a secret at first. As the pregnancy progresses, it becomes harder to hide. Naruto may start to train even harder to prove himself worthy of being a father and to protect his unborn child. Tsunade, on the other hand, might face challenges from the medical community as her pregnancy at her age could be considered high - risk. And there could be a rift in their relationship as they deal with the stress and the different ways they approach the situation.
One possible plot development could be that Naruto's friends rally around him to protect him while he recovers. They might seek revenge on the one who stabbed him.
Maybe Naruto gets banished and ends up in a place full of ancient and powerful artifacts. He discovers how to use these artifacts to enhance his own abilities. He also forms alliances with some outcasts in this new place who share their combat skills with him. As a result, he becomes powerful not just in terms of his ninjutsu but also in terms of strategy and teamwork.
In a 'Clary gets pregnant' fanfic, it could also explore how the pregnancy affects Clary's role in her world. If she's part of some sort of adventure or mission, she might have to step back or find new ways to contribute. There could be a lot of drama around protecting the unborn child from any threats in that fictional universe.
One possible plot development could be that they face challenges in their relationship due to the unexpected pregnancy. Maybe there are family or social pressures.
One possible plot development could be the exploration of the emotional turmoil for both Itachi and Sakura. Sakura might face challenges in her ninja life while dealing with the pregnancy. Itachi, on the other hand, would have to grapple with his own secrets and how this new situation affects his plans.
Well, one possible development could be that Ginny has to deal with the reactions of her family and friends. They might be shocked at first but then come around to support her.