Well, self - discovery is a big theme. Harry is trying to figure out his place in the prophecy and Hermione is constantly learning more about herself and her capabilities. The theme of loyalty also pops up often, as they remain loyal to each other and to their friends in the face of danger. And the theme of facing the unknown, which is very much related to the increasing danger from Voldemort and his followers.
One common theme is friendship development. Since they are from different friend groups in the original series, in these fanfictions, their fifth year often becomes a time when they start to see each other in a new light and build a closer bond. Another theme is academic challenges. As fifth year is crucial for O.W.L.s, they might face difficulties together and help each other out.
Another common theme is the discovery of magic. Since it's their first year, fanfiction often delves into how they experience new magical things together. They might explore parts of Hogwarts that are new to them and share their excitement about magic. For example, they could be in the library finding out about some rare magical spells. The theme of mystery also pops up a lot. There are often small mysteries in the castle that they try to solve as first - year students.
One common theme could be criticism of the way Hogwarts was run during Harry's fifth year. Maybe how Umbridge's strict and cruel regime was not effectively opposed by the faculty at first. Another theme might be exploring Harry's isolation more deeply and how his friends could have done better to support him.
One common theme is the discovery of new feelings. Since they are in their first year, both Harry and Hermione are new to the whole concept of having romantic feelings, especially towards each other. Another theme is friendship as a foundation. In most of these fanfictions, their existing friendship is what gradually evolves into romance.
Friendship is a big one. Their bond grows stronger during the third year as they face more complex challenges together. Another theme is mystery. There are often new magical elements or secrets that they have to uncover. For example, a hidden chamber or a forgotten spell.
One possible plot could be that they accidentally get exposed to a magical spell or potion that causes the unexpected pregnancy. This then throws their fifth - year studies and their relationships with friends like Ron into chaos as they try to figure out how to deal with it while keeping it a secret from most of Hogwarts.
One common theme is the exploration of their relationship. Since in the original books they were just friends, fanfictions often look at how they could become more. Another theme is adventure. They might go on quests together that weren't in the original series. And of course, the theme of growing up and dealing with the challenges of the wizarding world as a couple is also quite common.
One common theme is friendship. Since they are such good friends in the original series, fanfictions often explore the deeper levels of their friendship, like loyalty and understanding.
The themes usually include the exploration of love. As they grow from the 3rd to 7th year, their feelings might start to change. Another theme is the fight against the dark forces, which brings them closer. And there's also the theme of family, as they become like family to each other, especially with Harry not having a proper family, and Hermione's family being so different from the wizarding world.
A major theme is loyalty. They have to show loyalty to each other and to their friends in the face of various difficulties. Another theme that often pops up is time - related. Since Hermione has the Time - Turner in their third year, fanfictions might explore the consequences of time - traveling or the possibilities it opens up. Also, the theme of overcoming prejudice, whether it's against other houses or magical creatures, can be found in many of these fanfictions.