Well, in this fanfiction, perhaps it would focus on the emotional turmoil. Nala, pregnant by Scar, would likely be filled with a mix of emotions. Fear, because Scar is not exactly a benevolent character. She might fear for the future of her cub and what kind of life it would have under Scar's rule. There could also be a sense of isolation as the other lions may not understand or may even shun her. The story could also show how Scar's attitude towards Nala changes during her pregnancy. Maybe he starts to show a softer side, which is unexpected considering his usual nature.
Nala's mother, if she is in the story, would be heartbroken. She would have expected better for her daughter than to be in this situation with Scar. She might try to encourage Nala to leave Scar, but Nala could be in a difficult position, especially if she feels some sort of obligation to the unborn cub. Zazu, the majordomo bird, would be appalled. He has always been on the side of good and order, and this situation with Nala and Scar goes against everything he stands for. He might try to spread the word to other animals in the kingdom about what is going on, hoping that someone can do something to help Nala and the unborn cub.
Perhaps there could be a sub - plot where Rafiki plays an important role. He could be the one to predict the gender of the cub based on some ancient signs or rituals. And he might also give Nala some special advice on how to keep the cub healthy during the pregnancy.
One interesting plot twist could be that Scar, instead of being completely evil, has a change of heart because of Nala. Maybe Nala gets trapped somewhere and Scar, who happens to be nearby, saves her. This act of kindness makes the other animals start to question their view of Scar. And Scar, seeing Nala's courage and kindness up close, begins to think about changing his ways.
If a 'Nala pregnant fanfic' exists, one possible plot could be centered around Nala's journey through pregnancy. It might explore how she copes with the physical and emotional changes, and how her relationship with her partner (if there is one in the story's context) evolves. For example, they could be facing challenges together, like preparing for the new arrival in a difficult environment.
Well, one possible plot development could be that Katniss has to deal with the fear of bringing a new life into the dangerous world she lives in. She might worry about how to protect her child from the Capitol or any other threats. Another could be that Peeta plays a major role in supporting her during the pregnancy, and they might have to face challenges together as a couple.
Simba would likely develop more as a leader. He has to not only think about the pride as a whole but also about his family. His protective instincts towards Nala and the unborn cub would make him more cautious and strategic in his decisions for the pride.
One possible plot development could be that Laxus initially struggles with the news. He might be worried about his ability to be a good father. However, as time passes, he realizes his love for Lucy and their unborn child and starts to prepare for the new addition to their lives. For example, he could start training harder to be a protector of his family.
Well, one possible development could be that Ginny has to deal with the reactions of her family and friends. They might be shocked at first but then come around to support her.
Well, one possible plot development could be that Klaus is initially shocked but then becomes extremely protective of Caroline and the unborn child. He might use his power and resources to keep them safe from any threats in the supernatural world.
The plot could involve Juvia and Boras having to adapt to the new situation. Juvia might have to change her lifestyle, and Boras may need to take on more responsibilities. There could also be a sub - plot about the magical or fantastical elements in their world affecting the pregnancy, for example, some magic that could either help or pose a threat to the unborn baby.