Betty may become more empathetic. Going through pregnancy, she would experience a range of emotions and physical changes. This could make her more understanding of others who are going through difficult times in Riverdale. She might start to reach out to other young mothers or those in need in the town.
Sookie's pregnancy would likely make her more cautious. In the True Blood series, she's been rather fearless, but with a baby on the way, she'd have to think twice before getting involved in dangerous situations. For example, she might not be so quick to jump into a fight between vampires or werewolves. She'd also become more nurturing, which is a big change from her more independent and sometimes stubborn self. Her focus would shift from just surviving in the supernatural world to creating a safe environment for her child.
She would become more determined. Knowing she has a child on the way, she would be more resolute in making a life for herself away from the constraints of her old life. For example, she might be more assertive in finding a job or a place to live.
Caroline's pregnancy could make her more assertive. She has to think about the future of her child, so she would be more determined to fight for what she believes is right for them. For instance, she might demand better protection for the supernatural community if she thinks it will benefit her child in the long run.
Their friends' reactions could be mixed. Betty might be super supportive, but Jughead could be a bit more skeptical at first. He might worry about how it will change their group dynamic. Cheryl might be jealous or judgmental, seeing it as Veronica getting something she wants. This would put a strain on their relationships, as Veronica and Archie would have to deal with not only the pregnancy but also their friends' attitudes.
The fanfic could explore how the death affects the younger generation in Riverdale. Maybe the kids at school start to form a support group in Betty's name. Or perhaps there are some who try to follow in Betty's footsteps and continue her work for justice, which would create a new dynamic in the town as they face opposition from those who don't want change.
Physically, you can show Betty with dark circles under her eyes, constantly yawning, and her movements being sluggish. For example, when she's walking to school, she might be dragging her feet. Emotionally, she could be short - tempered with her friends and family, snapping at them easily because she's so tired of dealing with everything. You could also have her make mistakes she wouldn't normally make, like misplacing important evidence in a mystery she's solving.
Nancy would likely become more protective. She's always been brave in facing the Upside Down's terrors, but now she has someone else to think about. Her maternal instincts would kick in, and she might be more cautious in dangerous situations.
Bonnie would become more protective. Since she's pregnant, she'd be constantly worried about the safety of the unborn child. This would make her more cautious in her actions and interactions with the other characters. For example, she might be less likely to engage in dangerous magic without thinking about the potential harm to the baby.
She could become more emotional. Hormonal changes during pregnancy can lead to mood swings. In the fanfic, this might be shown through her interactions with other characters. For example, she might be more easily irritated or more sentimental than before. Also, her character might grow in terms of responsibility. She has to think about the future of her child, so she might start making more long - term plans, both in her personal and professional life.
Kushina's pregnancy could also lead to new relationships. Maybe she meets other pregnant women in the village and they form a sort of support group. This could be a new aspect of her social life. And with the medical ninja taking care of her, she could develop a closer relationship with them, learning more about the medical side of pregnancy and childbirth in the ninja world.