A possible plot is that Hermione runs away pregnant because she has been wrongly accused of something related to her pregnancy. Maybe she was framed for using dark magic to conceive or something similar. So, she runs away to prove her innocence while also protecting her unborn child. Along the way, she might have to use her intelligence and magical skills to evade those who are after her and find evidence to clear her name.
One possible theme could be self - discovery. Harry, being in such a difficult situation, might go on a journey to find out more about himself and what he truly wants. Another theme could be facing consequences. Running away while pregnant has its own set of challenges and consequences that he would have to deal with.
One possible theme could be self - discovery. Ginny running away pregnant might force her to figure out who she is on her own, away from the expectations of others.
It could be Ron. Maybe they had a falling out or some sort of misunderstanding during their relationship, and Hermione runs away when she discovers she's pregnant. Another possibility is that it's a new character, someone she met during one of her adventures or studies. This new character could be from a different magical culture, and their relationship was a secret.
Perhaps it's an enemy character who she had an unexpected encounter with, and this led to the pregnancy. It would add a lot of drama to the fanfiction as she then has to deal with not only the pregnancy but also the implications of the father being an enemy.
She may be running away to protect the baby. Maybe she fears that someone or something in her current environment poses a threat to the unborn child. It could also be that she wants to start anew, away from all the complications and expectations in her present life, so she decides to run away with the hope of building a better future for herself and her baby.
A major theme is the exploration of the wider wizarding world. In these fanfictions, Hermione gets to see parts of the magical community that she may not have known about while at Hogwarts. For example, she might discover hidden magical societies or ancient spells. Also, the theme of breaking free from expectations is prevalent. She's tired of being the know - it - all Gryffindor girl and wants to be more than that, so she runs away to create her own identity.
One popular Hermione runs away fanfiction is 'Hermione's Escape'. In this story, Hermione runs away due to feeling unappreciated at Hogwarts. It delves into her self - discovery journey outside the familiar wizarding world. Another one could be 'Away from the Norm' where she runs away to explore different magical cultures on her own terms.
One possible plot could be the secrecy and the struggle to keep it hidden from their friends. Another might be the way they deal with the reactions of Ron and other close friends. It could also involve how they plan for the future with a baby on the way in a world full of magic and danger.
It could be that Naruto discovers something about the nature of his pregnancy that scares him. For example, he might find out that the child has some sort of special power that could put it in danger. So he runs away to figure out how to handle the situation without endangering the village or the child. He might seek out a hermit or an old sage to get advice on what to do.
One possibility could be that Stiles runs away because he's afraid of the reactions from his friends and family. Maybe he thinks they'll be disappointed or angry. He might go to a place where no one knows him to start a new life for himself and his unborn child.