In the fan fiction, it could be that a prophecy or a magical accident makes Harry realize he's a Weasley. For example, he could be hit by a spell that undoes a previous enchantment that hid his true identity. Once he finds out, he would be thrust into the warm and large Weasley family. He'd experience a whole new level of family love and support. He might also have to face some challenges like dealing with any jealousy from other Weasley siblings who might feel that he's getting special attention because of his fame. And he'd have to learn how to be part of a family that's so different from what he thought his family was.
Well, in this fan fiction, it could be that a powerful magic was used to make Harry think he was an orphan, but the truth is he's a Weasley. He might find out through some sort of family heirloom that reveals his true identity. And then he has to deal with his newfound family, which includes getting used to the Weasley's unique family traditions and the chaos that often comes with them. He also might have to re - evaluate his relationships with his friends like Ron, who is now his brother, and Hermione, who has to deal with this new situation too.
Maybe Harry discovers he was secretly adopted by the Weasleys all along. So he has to adjust to this new reality and learn about his true family ties within the Weasley clan.
Obviously, Harry Potter himself as he is the one finding out this huge truth. And the Weasley family members, especially those like Mr. and Mrs. Weasley who would play important roles in helping Harry understand his new identity.
Well, perhaps Harry initially struggles with his new - found interest. He might be conflicted because of the long - standing rivalry between his friends and the Malfoys. But then he could start to see Draco in a new light, leading to some awkward and yet interesting encounters between them as he tries to reconcile his feelings with the reality of their families' differences.
One possible plot could be that Harry discovers he has some long - lost connection to the Malfoy family. Maybe he finds out through some ancient magic or a hidden family secret. This could lead to him having to re - evaluate his entire view of the Malfoys, especially Draco. He might start to understand Draco's actions in a different light and even feel a sense of kinship with him.
In some fanfics, Harry could find out he has distant relatives from the Potter family who live in a far - off land. These relatives could be part of a different wizarding culture. When Harry meets them, he gets to learn about different types of magic and different ways of living in the wizarding world. He might also discover that his family has a much bigger role to play in the overall wizarding history than he thought.
One possible plot development could be that Harry first goes into denial. He has grown up thinking his situation was normal. But as he realizes he's been abused, he might start to distance himself from those who have been part of the abuse, like the Dursleys. He could then seek out help from his friends at Hogwarts, like Hermione and Ron. They would support him, and together they might try to find a way to deal with the emotional and psychological trauma he has endured.
One possible plot development could be that Harry embarks on a journey to find his real family. He might start by looking into any clues he can find in his adoptive family's belongings or memories. Another could be that he faces a lot of internal conflict. He has grown up in a certain environment and now has to come to terms with the fact that it was all based on a lie. He may also have to deal with the reactions of his friends, some of whom might not believe him at first.
It could be that the pregnancy is a sign of a prophecy coming true in a very unexpected way. In the wizarding world, prophecies often have strange and convoluted ways of manifesting. Harry might discover that this pregnancy is linked to a greater destiny for him and the wizarding world. Maybe the child he's carrying will be a powerful force for good or evil, depending on how things play out. His relationship with Ginny would also be greatly affected. She would have to deal with her own feelings about Harry's situation, and they would need to work together to face this extraordinary event.
It could be the person who stole Harry in the first place. Maybe they are a powerful wizard who wants to keep Harry away from his real family for some self - serving reasons. They might be afraid that if Harry reunites with his true family, they will lose some kind of power or influence they have gained from keeping Harry in the dark.
One of the most interesting aspects in this type of fanfiction is seeing Harry's initial shock. He has grown up in a non - magical world, so suddenly realizing he's a wizard would be overwhelming. He might first doubt it, thinking it's some kind of joke or mistake. But as the story unfolds, he starts to see the evidence around him, like strange things happening that can't be explained by Muggle means.
Severus might be initially shocked. He could feel a strange sense of protectiveness over Harry, despite their past differences. He might try to find out who wrote the fan fiction and why they depicted such a disturbing scenario.