One common theme is the struggle with the unexpected nature of the pregnancy. Given Fenrir's complex and often villainous nature in the original Harry Potter lore, there could be a lot of internal conflict for Hermione. Another theme might be how the wizarding world reacts to such an unusual pairing having a child.
One common theme could be the struggle between different magical worlds or ideologies. Since Fenrir is often associated with the darker side of the wizarding world and Hermione is a very 'light - side' character. Another theme might be the exploration of an unlikely relationship, as their personalities and natures seem quite different.
One common theme could be redemption. Since Fenrir is a rather dark character, the fanfiction might explore the idea of him being redeemed through his relationship with Hermione. Another theme could be the struggle between good and evil within the relationship. Hermione represents good and Fenrir represents evil, and their relationship could be about how these two forces interact.
One common theme could be the power struggle. Since Fenrir is a werewolf and Hermione is a powerful witch, their relationship in the fanfiction might revolve around the clash of their different powers and how Hermione tries to resist Fenrir's obsession. Another theme could be the idea of redemption. Some stories might explore whether Fenrir can be redeemed through his relationship with Hermione.
One common theme is the adjustment to their new roles. Ron has to grow up a bit more and become more responsible, and Hermione has to learn to let go of some control. Another theme is the support from their friends, like Harry and Ginny, who are always there for them during the pregnancy.
One common theme is the exploration of motherhood. It shows how Ginny and Hermione, who are strong and independent characters, adapt to the role of being mothers. Another theme is the support system, like how their friends and family, especially Harry and Ron, react and support them during this time.
One common theme is the struggle with acceptance. Both within their own relationship and from the wizarding community. Another could be the challenges of raising a child in the wizarding world, especially considering their different backgrounds. And of course, there's often the theme of love overcoming differences, as Draco and Hermione come from rival houses.
One common theme is the relationship between Hermione and the father of her child. It could be about how they support each other during the pregnancy. Another theme might be Hermione dealing with the challenges of being a pregnant witch, like using magic while pregnant in a safe way.
Fanfiction.net could also be a place to search. However, the quality and content can vary widely. You'll need to search specifically for 'Fenrir and Hermione' and then look for stories that involve the pregnancy aspect among the results. It might take some time to sift through.
One common plotline could be Hermione finding ways to outwit Fenrir Greyback. For example, she might use her intelligence and knowledge of magic to set traps or create diversions. Another could be other characters coming to Hermione's rescue, like Harry and Ron realizing she's in danger and using their skills to protect her from Greyback.
One common theme could be redemption. Severus has a dark past in the original series, and a pregnancy with Hermione could be seen as a chance for him to redeem himself and become a better person. Another theme might be the power of love and how it can transcend the boundaries set by society or their own personalities.