Perhaps Naruto travels back to his early days at the ninja academy. With the knowledge of his future and being pregnant, he could start training his friends in a different way. He could focus on building stronger bonds and teamwork from the start, all while dealing with the physical and emotional changes of pregnancy in a ninja world that may not be fully accepting at first.
Another plot could involve Naruto traveling back to a time when the village was at war. His pregnancy could be a sort of 'secret weapon' in a way. He might have some new abilities related to his pregnancy (like a special chakra connection to the baby) that he uses to turn the tides of the war. And as he progresses through the war, he also has to take care of his unborn child's well - being.
One idea could be that Naruto travels back in time while pregnant and tries to prevent certain tragedies in the village. For example, he could stop the Uchiha massacre. Since he is pregnant, he might have an even stronger motivation to create a peaceful world for his unborn child.
Well, they could travel to a time when Voldemort was still at the height of his power while Ginny is pregnant. This would create a very dangerous situation as they try to keep Ginny and the unborn baby safe. They might have to rely on the help of some unlikely allies from that time.
One idea could be that Naruto travels back in time and gets adopted by a different clan. For example, the Uchiha clan. This would change his whole upbringing and how he views the world. He might learn different jutsus earlier and have a different relationship with Sasuke.
A cool plot idea could be Minato traveling back to his own childhood. He could then use his future knowledge to train himself more effectively, making himself an even more powerful shinobi at a younger age. This would have a huge impact on the future of the Leaf Village as he would be able to better protect it earlier. He might also be able to prevent some of the early tragedies that happened in the village.
One idea could be Tobirama traveling to the future and seeing how his village has developed. He might be shocked by the new technology and the different ninja techniques. Another plot could involve Tobirama going back in time to change a crucial event in Naruto's past, like preventing the Uchiha massacre. Or perhaps he travels to a different timeline altogether and has to find a way back while dealing with that timeline's unique challenges.
One idea could be Naruto traveling back in time and meeting Hashirama. He could learn about the founding of the village directly from Hashirama. Maybe Naruto helps Hashirama deal with some early threats to the village that were not well - documented in history.
One interesting plot idea could be Kakashi traveling back in time to before the Uchiha massacre. He could try to prevent it, which would completely change the future of the Naruto world. Maybe he'd have to face off against Danzo and his schemes early on.
One plot idea could be Sakumo traveling back in time to prevent his own death. This would change the course of Naruto's world as his father's death had a big impact on Kakashi, who in turn influenced Naruto. Another idea is Naruto traveling back to meet Sakumo and learn some long - lost jutsu from him. It could also be that they both travel back to a crucial point in Konoha's history and work together to save the village from a greater threat that was previously not averted.
One interesting plot idea could be that Naruto and Shizune travel back to the time when the Uchiha clan was still intact. Naruto, with his knowledge of future events and his never - give - up attitude, tries to prevent the Uchiha massacre. Shizune, with her medical skills and calm demeanor, helps him by treating any injured people along the way. They could face challenges like convincing the Uchiha clan to trust them and dealing with the political intrigue in the village at that time.
One idea could be Naruto going back to the time when the Uchiha clan was still intact. He could try to prevent the massacre by changing certain events or by influencing key people. Another plot could be him traveling back to his own childhood and using his future knowledge to become an even more powerful ninja earlier, like learning advanced jutsus much sooner.
Maybe Bolt travels back to a time when the Akatsuki was at its peak. He could use his knowledge of future events and his own skills to try and take on the Akatsuki, creating a whole new set of battles and alliances. For example, he might form an alliance with Itachi before his death and together they could try to take down the other Akatsuki members.