In the fanfiction, Pepper being pregnant could be a factor that tries to pull Tony out of the conflict. It could make him question the point of the war when he has a family to think about. Maybe it causes him to try and find a more peaceful solution, or at least stay on the sidelines more.
There could also be a new relationship develop between Pepper and some of the characters on the other side of the Civil War. Maybe one of them has a sister or a wife who has been through pregnancy, and they feel a sense of kinship. This could lead to some unexpected alliances or at least a more nuanced view of the conflict.
In this fanfiction, Pepper might struggle a bit with the idea of being pregnant while Tony is constantly in the spotlight as Iron Man. She could worry about how their child will grow up in such a public environment. However, Tony reassures her that they can create a normal family life within their extraordinary circumstances.
One possibility is that Pepper's pregnancy could be a secret at first. This would create tension as Tony tries to keep it from his fellow Avengers. He might worry that the knowledge of his impending fatherhood could make him seem vulnerable or distracted. However, as the events of Infinity War unfold, the secret could be revealed in a moment of high stress, perhaps when Tony is in a life - or - death situation.
There could be a Pepper Potts Civil War fanfiction that delves into her own moral dilemmas during the war. Given her position in Stark Industries and her closeness to Tony, she might struggle with the ethics of the superhuman registration act. The fanfiction could show her journey as she tries to figure out what is right, and how she might take actions to either support or oppose the act. She could also be a key figure in trying to protect the innocent civilians caught in the middle of the superhero battle.
Another character that could be paired with Pepper Potts in these fanfictions is Happy Hogan. He's also part of the Stark Industries family. A fanfic could explore how he and Pepper deal with the chaos of the Civil War, perhaps they are both trying to protect the company and its employees while also being caught in the middle of the superhero drama.
Often, their relationship is tested. Tony's involvement in the Civil War can cause stress between them. Pepper might worry about his safety and the moral implications of his actions.
One idea could be that Pepper tries to mediate between Tony and Steve during the Civil War. Since she knows Tony so well, she might be able to find common ground that others can't. Another could be Pepper getting involved in the fight herself, using her business acumen and strategic thinking to help Tony's side. Maybe she discovers a hidden plot that could change the course of the war.
A plot could be that Pepper discovers she's pregnant right before a major crisis at Stark Industries. She has to keep it a secret while trying to solve the problem, adding a lot of suspense.
Pepper Potts is a character in the Iron Man movies and Marvel Comics. She is Tony Stark's (Iron Man) close confidante and later his love interest. She is known for her intelligence, business acumen, and her role in Stark Industries, helping Tony manage his company and often getting involved in his superhero affairs.