A possible theme could be the journey of self - discovery for both Naruto and Kakashi. Naruto, being in this unexpected situation, would have to reevaluate his identity, goals, and place in the world. Kakashi, on the other hand, would also have to face new responsibilities and feelings. Additionally, the fanfiction might touch on themes of family, as Naruto is now in a position to start a new kind of family, which is very different from what he might have expected in the original story.
Well, there could be themes like the reaction of the other characters in the Naruto universe. How would Naruto's friends, like Sasuke or Sakura, react to such a situation? Also, it could explore the relationship between Kakashi and Naruto on a deeper level. Since Kakashi is Naruto's teacher, this new situation would change their relationship in many ways. And the theme of dealing with the stigma or uniqueness of a male pregnancy in a world that may not be fully accepting of it could also be present.
One common theme is the exploration of how the characters' relationships change. For example, how Kakashi might become more protective of fem Naruto during her pregnancy. Another theme could be the challenges they face in a world where pregnancy might be unexpected or difficult given their ninja lifestyles.
Well, there could be. Fanfiction writers love to explore unique and unexpected relationships. Since Naruto and Kakashi are both popular characters in the Naruto universe, some writers might come up with such a plot for the sake of creativity and exploring different storylines. But it's not a part of the official Naruto story.
One possible theme could be the exploration of forbidden or taboo relationships. Since this scenario is so far from the original Naruto story, it would likely touch on the idea of breaking boundaries and norms within the Naruto universe. Another theme might be the struggle of Naruto dealing with this unexpected and unorthodox situation, both physically and emotionally.
One possible motive could be to help Naruto control the Nine - Tails' chakra better. Hypnosis might be a way to reach into Naruto's subconscious and find a way to coexist with the powerful force inside him.
One plotline could be that they face difficulties during the pregnancy due to their ninja duties. Maybe they have to hide their pregnancy from enemies or deal with the physical strain of being a ninja while pregnant.
One possible plot could be that they accidentally end up in a situation where Sakura becomes pregnant, and then they have to deal with the reactions of their friends and the ninja community. Another could be that it's part of a planned future for them, and the fanfiction focuses on their preparations for the baby.
One possible plotline could be them dealing with the unexpected pregnancy in the middle of their ninja duties. They might have to balance their responsibilities to the village with preparing for a new life. Another could be the reactions of their friends and comrades in the village. For example, how Naruto or Tsunade would react to the news.
One possible reason could be that Kakashi is preoccupied with other important matters in the village. Maybe he has some top - secret missions or tasks assigned by the Hokage that demand his full attention, leaving him with little time to focus on Naruto.
One reason could be that he sees Naruto as a younger version of himself in some ways. Both have had their share of loneliness and challenges growing up. Kakashi may want to prevent Naruto from going through the same pain he did. Another reason is Naruto's importance to the village. As the jinchuriki of the Nine - Tails, Naruto is a key asset. Kakashi, being a loyal ninja, wants to protect the village's future which is tied to Naruto.
One possible reason could be that Naruto might feel Kakashi is too strict with his training. Maybe Kakashi's methods are too harsh for Naruto, making him frustrated and gradually developing dislike.