One possible plot could be that Harry and Ginny are overjoyed at the news of Ginny's pregnancy. They start preparing for the baby's arrival by setting up a nursery in their home at Grimmauld Place. Ginny might take a break from Quidditch, and Harry would be extra protective, constantly worrying about her safety. Their friends like Hermione and Ron would be excited and offer their help, bringing baby clothes and giving advice based on what they've read in wizarding parenting books.
In a fanfiction plot, perhaps Ginny discovers she's pregnant during a time of relative peace in the wizarding world. Harry is initially a bit nervous but quickly becomes excited. They could face some challenges, like dealing with the media in the wizarding world. The Daily Prophet might start speculating about the baby's future, whether it will be a great wizard like Harry. Meanwhile, Ginny could be having some unique magical symptoms during her pregnancy, which they have to figure out with the help of healers at St. Mungo's.
It could be that Ginny is part of a bet or a dare. Her friends or acquaintances might have challenged her to pretend to be pregnant for a certain period. In the fanfiction, this could lead to all sorts of comical and complicated situations as she tries to keep up the pretense in front of different people.
In this fanfiction, Ginny might find strength within herself that she didn't know she had. She could start to form new relationships with other characters who help her through the pregnancy. For example, she could become closer to Hermione, who could offer practical and emotional support. The pregnancy could also be a catalyst for changes in the wizarding society's view on single motherhood. It could lead to new laws or social norms being established, and Ginny could be at the forefront of this change.
Well, one possible development could be that Ginny has to deal with the reactions of her family and friends. They might be shocked at first but then come around to support her.
One possible plot could be that Harry is under the influence of a dark spell or some mind - controlling magic that makes him kidnap Ginny. Maybe he's been hexed by a powerful dark wizard who wants to use Ginny as a bargaining chip against the Order of Phoenix. So, Harry, without his true self in control, takes Ginny to a hidden location.
Well, it could be that Ginny is pregnant in a world where magic exists (assuming this is related to a magical universe like Harry Potter if Ginny is from there). The pregnancy could bring about some sort of magical phenomenon. Maybe the unborn baby has some sort of special power that starts to manifest during the pregnancy. This could lead to Ginny having to protect the baby from those who might want to use the baby's power for their own gain. At the same time, Ginny has to deal with the normal physical and emotional aspects of pregnancy like morning sickness and mood swings.
Perhaps Ginny discovers some hidden secrets or powers within herself as she copes with Harry's death and the pregnancy. Maybe she has to deal with people who question her ability to raise the child without Harry. The story could also focus on how the child grows up with the legacy of Harry, and whether the child inherits any of Harry's special abilities or traits.
Well, in this kind of fanfiction, a plot development could be that Ginny, being pregnant, discovers new magical abilities or powers related to motherhood. This could be a unique take on the story. Also, the wizarding community might react in different ways to Ginny's situation. Some could be supportive, while others might shun her because of Harry's departure. It could lead to Ginny having to fight for her place in the community and prove that she can be a great mother on her own terms.
Well, it could be a story about the anticipation and joy they feel. Maybe it focuses on how they prepare for the arrival of their child, like setting up the nursery. Harry might be a bit nervous about being a father, but Ginny is there to reassure him.
One possible plot could be that they see a future where the wizarding world is in great danger again. So they start to train young wizards secretly to prepare for the upcoming threat.
A plot could be that the 'force' is a mysterious energy that Ginny unknowingly absorbed. Now that she's pregnant, it's affecting her and the baby in strange ways. Harry has to research ancient texts and consult with wise wizards to find a way to control this force. Ginny, on the other hand, is dealing with the physical and emotional changes of pregnancy while also being a vessel for this unknown force. It could be a story full of mystery, adventure and family bonds.