It's a very controversial theme. In the Naruto canon, Kushina is Naruto's mother and they have a loving bond that is a fundamental part of the story. A fanfic with such a premise goes against the essence of their relationship. It would likely shock and upset many fans who are attached to the positive family dynamics in the original series.
Definitely not a common theme. The Naruto fandom has a vast range of fanfic topics. For example, there are many that focus on Naruto's training, his battles, or his friendships. Since the original Naruto story has a clear family tree where Kushina is Naruto's mother, this pregnancy - related fanfic idea is quite out of the ordinary. It also might make some fans uncomfortable as it goes against the established family dynamic. However, in the very large and diverse world of fanfiction, every once in a while, there might be some out - there ideas like this, but they are far from the norm.
One possible plotline could be that Naruto has a nightmare, and Kushina comes to his side to comfort him. She might hold him and tell him stories about how brave he is, just like his father. This would strengthen their family bond and show Kushina's motherly love.
Sakura is typically shown as intelligent and determined in these fanfics. Her development from a somewhat insecure girl to a confident ninja is often explored. Kushina is characterized by her boldness and tenacity. When they are in a fanfic together, their relationship can vary. It could be a friendship where they bond over their love for the village or their shared experiences with difficult situations. Maybe Sakura admires Kushina for her strength and Kushina sees potential in Sakura, leading to a relationship of mutual respect and support.
It shows the importance of a mother's presence. Kushina's regret emphasizes that a mother - son relationship is crucial for a child's development. Naruto grew up without his mother, and Kushina's regret highlights the void that was created. It's about how her absence affected Naruto's growth and self - perception.
Another aspect could be that the fanfiction delves into how Kushina's presence affects Naruto's relationships with others. For instance, his relationship with Sasuke could be different. With a strong maternal figure in his life, Naruto might be more stable emotionally and be able to approach Sasuke in a more understanding way, which could potentially change the whole dynamic of their rivalry and friendship.
One possible reason could be a misunderstanding. Maybe Minato thought Kushina had done something to endanger Naruto when in fact she hadn't. In the heat of the moment, he lost his temper and slapped her.
One consequence could be Naruto's emotional turmoil. He would be completely shattered as his mother, who he probably idolizes, has turned against him. This could lead to him doubting himself and his place in the world.
One consequence could be Naruto's emotional breakdown. Since Kushina is his mother, her betrayal would be a huge blow to him psychologically. He might start to doubt himself and his place in the world.
Yes, there are many. Some fanfictions focus on the warm family moments, like Naruto's father Minato being excited and taking care of Kushina during her pregnancy. They might show how the village is also preparing for the arrival of the new baby, with friends and neighbors being supportive.