The fanfic might also explore the idea that Naruto is not okay in terms of his relationships. Maybe he has had a falling - out with his friends or there are some unresolved issues within the village. Jiraiya, being observant, realizes these problems. He might then take it upon himself to act as a mediator in Naruto's relationship issues or try to boost Naruto's confidence within the village so that he can feel more at ease and get back to his normal self.
Sasuke might initially be shocked. He has always been a bit aloof and focused on his own goals. But once the shock wears off, he would probably feel a sense of protectiveness over Sakura and their unborn child. He'd start to think about how to keep them safe in the dangerous ninja world.
Well, in many fanfictions with this plot, Sasuke's realization of Sakura's pregnancy can be a turning point in their relationship. It could strengthen their bond as he realizes the depth of their connection through this new life they are about to bring into the world. It might also bring out his softer side that was hidden due to his past traumas and his lone - wolf nature.
The main characters are Jiraiya and Naruto. Jiraiya is the one who realizes that Naruto is not okay. His role is like that of a mentor or a guardian. He is more experienced and has to figure out what's wrong with Naruto. Naruto, on the other hand, is the one in distress. He is usually a strong and determined character, but in this fanfic, he is facing some sort of problem that is affecting his normal state.
There are several challenges. Firstly, Sasuke's past actions might have made some people in the ninja world resent him, and they could take it out on his family. Secondly, Sakura is still a ninja herself, and she might struggle to balance her pregnancy and her ninja duties. And lastly, they need to prepare for the arrival of the baby, which includes things like finding a safe place to live and getting the necessary supplies in a world that can be quite harsh.
He might meet the future versions of Naruto and Sakura. Their relationship with him could be very different in the future, perhaps they are now leaders of the village and Sasuke has to adjust to their new status.
He might miss out on some crucial training. Jiraiya has a lot of knowledge and skills to pass on, and by running away, Naruto could fall behind in his development as a ninja.
One possible reason could be that Naruto might be afraid of the intense training Jiraiya has in store for him. Jiraiya is known for his strict and grueling training methods, and Naruto, being young and sometimes impatient, might just want to escape that for a while.
She might be extremely hurt. Sakura has deep feelings for Sasuke, and realizing that he is using her in such a way would be a huge blow to her. She could feel betrayed and angry, and might lash out at him immediately.
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.