Often, there's a plot twist where Hermione discovers that Draco has been manipulated by someone else to kidnap her. This makes her feel sympathy for him. And they end up teaming up to expose the real villain behind the scheme. Their relationship then evolves into an unexpected alliance, which is a major departure from their initial adversarial relationship in the original 'Harry Potter' story.
A common plot twist is that Hermione actually has a hidden power or ability that she reveals during her captivity. For example, she might be able to use a type of magic that Draco and his associates didn't expect, which gives her an upper hand in the situation. This could lead to a change in their relationship dynamic, from captor - captive to something more like equals.
Another plot twist could be that Draco realizes he has made a huge mistake. Maybe he starts to see Hermione as a person rather than just a target. As a result, he decides to help her escape from other threats, like other dark wizards who want to harm Hermione. This then turns into a story of redemption for Draco.
Perhaps a plot twist could be that Draco is under the influence of a dark spell when he kidnaps Hermione, and as she tries to break the spell, she uncovers a conspiracy within the wizarding world. Or it could be that the kidnapping is a ruse set up by Hermione herself to infiltrate the Slytherin group, but Draco doesn't know it and things spiral out of control.
Often, a plot twist could be the discovery that the baby is part of some ancient prophecy. This throws Draco and Hermione into a whole new set of challenges as they try to protect their child and fulfill the prophecy. Also, there might be a plot twist where Hermione's Muggle - born status causes problems. Some in the wizarding world might try to use the new baby as a way to target Hermione and her family again, despite her relationship with Draco.
A plot twist might be that the werewolf gene behaves differently during the pregnancy. Instead of the usual werewolf transformation problems, it gives Hermione or Draco the ability to communicate with other magical creatures in a unique way. Also, perhaps there is a prophecy related to the baby that no one knew about before the pregnancy. This could put Hermione and Draco in a difficult situation as they try to protect their unborn child from those who might want to use the prophecy for their own gain.
A common plot twist is that Draco is secretly working against his family's wishes to protect Hermione. For example, his family might be part of a dark plot, but he chooses to side with Hermione instead. This adds an element of conflict and drama to the story.
One possible plot twist could be that Hermione uses her intelligence to outwit Dolohov even while kidnapped. Maybe she manages to leave hidden clues for her friends to find her. Another could be that Dolohov has an ulterior motive other than harming her, like using her as a bargaining chip in the wizarding war. Or perhaps Hermione discovers a hidden power within herself during the time of her captivity that helps her escape.
One common plot twist is that the child has some extraordinary magical power that neither Hermione nor Draco expected. Another is that the secret of the child's existence is threatened to be exposed by an old enemy. Sometimes, the child may turn out to be the key to solving a big mystery in the wizarding world.
One common plot twist is the revelation of a hidden family connection that makes them siblings. Another could be that they have to team up against a common enemy, like a dark wizard who is targeting their family. It might also be that Draco has to choose between his Slytherin friends and his new - found sister Hermione when there's a conflict between them.
One common theme is redemption. Draco often starts as a villain in the act of kidnapping but through his interactions with Hermione, he begins to change and seek redemption. For instance, he may realize the error of his ways in following the pure - blood ideology.
One possibility is that it could be a dark and twisted take on the relationship between Draco and Hermione. Maybe in this fanfiction, Draco has some ulterior motives that lead him to this extreme act. It could explore themes of power and control as he forces Hermione into a situation she doesn't want. However, it also might lead to a redemption arc for Draco as Hermione tries to change his ways.
One common plot twist is that Hermione actually doesn't have feelings for either of them at first. She's more focused on her studies or some other important mission. But as the fight between Ron and Draco escalates, she starts to see them in a different light. Maybe she realizes that Ron's jealousy is a sign of his deeper feelings for her, or she discovers a hidden, more noble side to Draco.