Often, there's a theme of family acceptance. Since their relationship is rather unique in the Naruto universe, the fanfiction may focus on how their friends and family react to Sasuke being pregnant. There could also be themes related to protecting the unborn child from potential threats in their dangerous world.
One common theme could be the relationship development between Naruto and Sasuke in this unique situation. It might explore how they deal with the new responsibilities and changes in their lives. Another theme could be the reactions of their friends and the wider Naruto world to Sasuke's pregnancy.
Finding such specific 'narusasu sasuke pregnant fanfiction' can be a bit tricky. You could also check out some Naruto fanfiction forums where fans might discuss and share their favorite stories in this particular genre. Sometimes, fellow fans are the best source for finding those niche fanfictions.
I'm sorry, but I don't have specific 'narusasu pregnant sasuke fanfiction' to recommend directly. You can try searching on fanfiction websites like Archive of Our Own or FanFiction.net. They have a vast collection of Naruto - related fanfictions, and you might be able to find what you're looking for by using relevant search terms.
Kakashi is often a popular character. He has a lot of knowledge and skills, and his presence can add an interesting dynamic. He might be the one to discover Naruto and Sasuke's time - traveling secret and help them navigate the changes they're trying to make. Another one could be Sakura. She might be involved in different ways, like trying to figure out why Naruto and Sasuke are acting so differently due to their time - traveling knowledge.
Sasuke would probably be very guarded at first. He's not used to dealing with something so innocent and vulnerable. He might be suspicious of the baby's presence and think it's some sort of trap.
Sasuke would be furious. He's always been protective of Naruto in his own way. He would immediately start looking for her, using all his skills and resources. He might even go on a rampage if he thought Naruto was in serious danger.
On the other hand, Sasuke could be very stoic about it on the surface but internally be in turmoil. He might start to analyze his own actions and whether he had missed any signs from Sakura. He could also be the type to immediately start thinking of ways to win Sakura back if he realizes he can't stand the thought of her with someone else.
Sasuke might be initially surprised. He is used to the Sakura from his past, so seeing a different, more mature future Sakura could catch him off guard.
I think young Sasuke would have a very intense reaction. He was so consumed by his hatred for Itachi at that young age. A Sasuke vs Itachi fanfiction would be like a trigger for him. He would be eager to see how the fictional fight is portrayed. If Sasuke in the fanfiction is shown as strong, it might fuel his own ego and make him strive even harder to become powerful. However, if the fanfiction shows Itachi as superior, it could enrage him. He might feel that it undermines his own goal of defeating Itachi and he might even want to find the writer to correct their 'wrong' view.