A third common theme is the future. How will the pregnancy change their plans? Will they be able to continue with their normal lives? In some fanfics, it might be about the hope for a better future, while in others, it could be about the fear of the unknown. The baby can also symbolize a new beginning or a new chapter in their lives, which is often explored in different ways in these fanfictions.
One common theme is the struggle of Jeremy dealing with the new responsibility. He might be worried about protecting the reader and the unborn child from the dangers in their world, especially if it's in the 'The Vampire Diaries' universe with all its supernatural threats.
Another theme could be the relationship changes. The pregnancy can bring out a more protective and caring side of Jeremy, and it might also cause some tension in their relationship as they adjust to the new situation. There could be moments of doubt, like whether they are ready for this big step. It can also explore how their friends and family react to the news, which adds another layer of drama to the story.