I'm not sure if there's a specific fanfic where Catherine is pregnant in 'Hawaii Five - 0'. Fanfics can vary greatly, and it would depend on the creativity of the individual fanfic writer.
There could be a fanfiction where Catherine's pregnancy adds a whole new layer of drama to the Hawaii Five 0 story. Maybe she has to balance her duties with her pregnancy, or there could be threats to her and the baby. It could also explore how the team members react to her pregnancy, like Steve being overprotective.
One possible plotline could be how the team reacts. They might be overprotective of her, or there could be concerns about her ability to continue her work. For example, Steve might be extra cautious around her.
In the fanfiction, Catherine's pregnancy might be a result of a secret relationship. This could lead to a lot of drama and internal conflict within the Hawaii Five - 0 team. Some members might be supportive, while others might be worried about how it will affect her ability to do her job.
A possible plot is that the father of Catherine's baby is someone unexpected, like a character from her past who suddenly resurfaces. This creates a complex web of relationships and emotions within the Hawaii Five - 0 story. The team has to deal with this new situation while still maintaining law and order in Hawaii.
In this fanfiction, Catherine's pregnancy could be a central theme that brings out different sides of all the characters. The team members might start to see her in a new light, not just as a tough agent but also as a soon - to - be mother. And Catherine herself could grow and develop as a character, learning to balance her new role as a mother - to - be with her role in the Hawaii Five 0 team.
One possible plot could be that her death sets off a chain of events that forces the Five - 0 team to re - examine past cases. Maybe she was involved in something that they didn't fully understand, and her death reveals hidden secrets. For example, she might have been in contact with an old enemy of the team, and that connection comes to light only after she dies.
Steve McGarrett is a great character to focus on. He's the leader of the team, with a strong sense of justice and a lot of backstory to explore, like his military past. Another good one is Danny Williams. His banter with Steve adds humor to the show, and his family - man side gives room for some emotional depth in a fanfic. Kono Kalakaua is also interesting. She's a strong female character with her own set of skills and a connection to Hawaiian culture that can be delved into.
Her death could also have an impact on the villains in the fanfic. If she was involved in something that threatened them, they might feel a sense of relief at first. But then they would start to worry as the Five - 0 team closes in on them, suspecting that they were behind her death. This could lead to some interesting cat - and - mouse games between the villains and the team.