Perhaps it's a result of some dark magic interference. The story could focus on how Harry and Hermione struggle to find a way to reverse it at first. But as time goes on, they start to form an unexpected bond with the unborn child in a magical way. They might face discrimination or suspicion from some in the Hogwarts community who fear the unknown nature of this magical pregnancy, and they have to prove that they can handle it and that it's not a threat to the school.
In the fanfiction, Ginny might be pregnant as a result of some dark magic or a curse gone wrong. This would add an element of mystery and danger. She would need to find a way to break the curse or deal with the consequences. The Hogwarts faculty would be involved, some trying to help and others being more judgmental. Her pregnancy could also be a sign of a greater threat to the school, and Ginny would be at the center of it all.
One way could be through a time - travel plot. Maybe Hermione travels back in time and ends up in a relationship with Fred instead of Ron, and then the pregnancy occurs. Another option is a magical accident where a spell affects their emotions and actions towards each other, leading to the situation.
Perhaps the story could revolve around them facing challenges within the Hogwarts faculty. There could be some old - fashioned professors who oppose their modern teaching methods. Harry and Hermione then have to prove that their ways are beneficial for the students. They might also discover new magical abilities in some of the students that were previously overlooked, and help those students develop their skills.
One possible plot could be that they meet in a muggle library. Hermione is there researching magic in the guise of general knowledge books, and Harry stumbles upon her while looking for a quiet place to escape from the Dursleys. They start chatting about books, and Hermione is intrigued by Harry's strange yet endearing manner. They then realize they both have a connection to the magical world.
In many fanfictions, a plot where Hermione is pregnant at Hogwarts can bring a whole new set of challenges and storylines. It might involve how she manages her studies while dealing with the physical and emotional changes of pregnancy. Also, it could explore how her friends, like Harry and Ron, react to this unexpected situation.
One possible plot could be that while they are on the run and hiding in the tent, they find unexpected love and a sense of family. Maybe they are forced to rely on each other more than ever, and this closeness leads to a romantic relationship and then the pregnancy. It could be about how they deal with this new situation in the midst of danger and their quest to defeat the Dark forces.
One possible plot could be that in an alternate magical universe, a spell goes wrong and causes both Bill and Charlie to experience some of the physical symptoms of pregnancy, while Hermione, being the brilliant witch she is, tries to find a way to reverse the spell. Along the way, they could have humorous exchanges about the situation and learn more about the magic behind such strange occurrences.
Maybe she'd take control to better protect the students. She might enforce stricter security measures around the castle and grounds. Hermione is known for her caution and strategic thinking, so she could organize the defense of Hogwarts in a more efficient way against potential threats, like Death Eaters or other dark forces.
Well, perhaps the plot could involve Hermione discovering some ancient secrets of Hogwarts that are only known to the heir. Maybe she has to face challenges that test her intelligence and magic skills in a whole new way.
Well, it could be that Hermione inherits Hogwarts due to some magical law or prophecy. She then uses her intelligence and knowledge to make all kinds of reforms, like improving the curriculum for all students.