TK could develop by becoming more responsible. He might start taking on more tasks like getting a job if he didn't have one before, or learning how to cook healthy meals for Kairi. Kairi, on the other hand, could develop a stronger sense of self - preservation for the sake of the baby. She might become more assertive in asking for what she needs during the pregnancy.
During the pregnancy, TK may become more in - touch with his emotions. He could start to write poetry or draw pictures about his feelings towards Kairi and the unborn child. Kairi might develop a deeper bond with TK as they go through the various stages of the pregnancy together. They could have long talks at night about their hopes and fears for the future, which would strengthen their relationship.
During the pregnancy, Loki's character might transform from his usual mischievous self to a more responsible and nurturing one. He'll have to be there for Darcy, which means learning about Earthly things like doctor's appointments and baby - proofing. This will force him to adapt and grow. Darcy, on the other hand, will likely develop a deeper bond with Loki. She'll see a side of him that she hasn't before, and this will strengthen their relationship. She might also become more in tune with her maternal instincts, starting to plan for the baby's future and thinking about how to create a stable environment for it.
Connor could develop more patience. With Aveline being pregnant, he has to deal with her mood swings and various needs. This would force him to be more understanding and less impulsive. Aveline, on the other hand, might become more self - reliant. Despite being pregnant, she may strive to still contribute to their lives and not let the pregnancy completely overtake her identity.
Perhaps in the fanfiction, TK and Kairi are living in a world full of magic or some special circumstances. The pregnancy might bring out some unique powers or abilities related to the baby. They could also go on a journey to find a special healer or place that can ensure a safe pregnancy and birth in this unique world.
Emma's character could become more in tune with her emotions. Pregnancy often brings out a range of feelings, and she could use this time to better understand herself. Hook could develop a stronger sense of loyalty not just to Emma, but to the future family they are creating. He may also become more involved in the community around them, as he realizes the importance of a stable environment for their child. This would be a significant shift from his more solitary pirate past.
Their relationship could deepen with Goliath becoming even more protective of Elisa. He would be constantly on guard to ensure her safety. Elisa, in turn, might rely on Goliath more, creating a stronger bond between them.
As a couple, they could develop better communication skills. The pregnancy is a big change, and they need to talk about their fears, hopes, and plans. They might start to understand each other on a deeper level, like Rumple realizing how much Belle is sacrificing for their family, and Belle seeing Rumple's insecurities about being a good father. This could lead to a stronger, more loving relationship.
Aaron might become more protective. He could start to think more about the future and become more responsible. Robert, on the other hand, may struggle at first with the idea but then grow into a more nurturing role. He could become more in tune with his emotions.
Derek could become more responsible. He might start taking on more household chores, like cooking healthy meals for Casey, and be more protective of her. Casey, on the other hand, could develop more patience. Dealing with the hormonal changes and the physical discomfort of pregnancy, she learns to control her temper better and communicate more effectively with Derek.
During the pregnancy, Harry might develop his magical skills in new ways. Maybe he starts to study some old and forgotten spells that could protect his family better. Fleur could develop her relationship with the wizarding community in Britain. Since she is from France, she might have been a bit of an outsider before, but now with the pregnancy, she becomes more involved. She could start teaching some Beauxbatons - style magic at Hogwarts, which not only helps her integrate but also enriches the Hogwarts curriculum. Harry would support her in this, and their relationship would grow as they both expand their horizons.
Doug could develop by becoming more responsible. For example, he might start taking on more household chores or saving money for the baby. Evie could become more patient as she has to deal with the physical and emotional changes of pregnancy. She might also learn to rely on Doug more.