One common theme is redemption. Narcissa was a Death Eater's wife, and in many fanfictions, she tries to redeem herself through her interactions with Harry. Another theme is the blurring of the lines between good and evil. Since Harry represents good and Narcissa was on the 'bad' side originally, their relationship in fanfics often challenges the traditional view of good and evil.
There are many fanfictions on this topic. Some might explore how Narcissa's pregnancy would change her relationship with the Malfoy family and their stance in the wizarding world. It could also show how she might deal with the impending birth during the chaotic times in the story.
One possible plot could be that Harry grows up with a different perspective on the wizarding world. Narcissa might shield him from the more extreme pure - blood ideologies in her own family. He could still have his natural talent for magic but be trained in a more Slytherin - like way, focusing on cunning and self - preservation. And he might have a different relationship with Draco, perhaps more of a brotherly bond.
One popular type might be those that focus on their relationship within the complex wizarding world. For example, some fanfictions could explore how Narcissa's loyalty to her family and the Dark Lord might interact with Harry's role as the 'Chosen One'. It could show how their paths cross in unexpected ways, like in a political intrigue within the Ministry of Magic where they have to form an uneasy alliance to achieve their respective goals.
There could also be other characters like Draco Malfoy. His mother being in this situation would surely have an impact on him. He might try to rescue her or come to terms with the new dynamic. And then there are Harry's friends, Hermione and Ron. They might have different views on the whole situation. Hermione could be more concerned about the ethical implications, while Ron might be more distrustful of Narcissa at first.
Draco Malfoy is often a very popular character in these fanfictions. Since Narcissa is his mother, his relationship with her and how it is affected by her interactions with Harry can be a major plot point.
One great 'Harry Potter and Narcissa Malfoy' fanfiction is 'A Different Perspective'. It explores a unique relationship between them in the post - war era. The story delves into how Narcissa's actions during the war might have had deeper implications on her relationship with Harry. It's a really interesting read if you're into exploring the more complex characters in the Harry Potter universe.
One unique fanfiction I remember is set in an alternate universe where Narcissa is a spy for the Order of the Phoenix from the very beginning. Harry stumbles upon her secret and they end up working together closely. The plot is full of twists and turns as they try to outwit Voldemort and his Death Eaters. It also delves deep into Narcissa's character, showing her as a strong and complex woman with her own motives and desires. In this story, their relationship is a key factor in the fight against the Dark forces.
One possible plot could be a story where the wizarding world is in a state of great upheaval after the war. Harry, in his quest to bring about true peace and unity, finds himself working closely with Narcissa. Over time, they develop a deep understanding and respect for each other. Narcissa, having lost so much in the war, is drawn to Harry's sense of justice and kindness. Harry, on the other hand, sees Narcissa as more than just a Death Eater's wife. Their relationship blossoms in secrecy at first, as they both know it will be a shock to the wizarding community. Eventually, they decide to marry, much to the dismay and confusion of many, but also as a symbol of a new beginning that transcends old grudges.
One possible plotline could be that Narcissa tries to keep her pregnancy a secret from Voldemort, fearing his reaction. Another is that she uses her pregnancy as a reason to distance the Malfoy family from the Dark Lord's side.