One common theme is the support system. It shows how the friends and family of the pregnant female character support her during the pregnancy. For instance, in stories where Ginny is pregnant, Harry and the Weasley family might be shown as being very protective and helpful.
Another theme is the balance between personal life and the magical world's responsibilities. A pregnant female character may have to decide whether to continue her work in the wizarding community, like being an Auror or a Hogwarts professor, while also taking care of her pregnancy. This theme explores the character's priorities and how they adapt to their new situation.
The theme of anticipation and fear is also quite prevalent. Just like in real life, Harry and Ginny are often shown to be both excited about the baby but also worried about potential problems. And of course, the theme of love. Their love for each other is strengthened during this time, and it's often beautifully portrayed in the fanfictions.
One popular theme is how the pregnancy affects the character's relationships. For instance, if Ginny were pregnant, how would it change her dynamic with Harry? Another theme could be the magical implications of pregnancy. Maybe there are spells or potions related to pregnancy in the wizarding world that are explored. And also, the theme of the future of the wizarding family and how the new baby might be involved in the wizarding community's future.
Often, themes related to relationships play a big part. For example, how her relationship with her partner (whoever that may be in the fanfiction) changes during the pregnancy. There could also be themes of the support she gets from her friends, like Hermione and Ron, or lack thereof. Another theme could be the anticipation and fear of bringing a new life into a world full of dark magic and danger. The female Harry Potter might be worried about how to protect her unborn child in such an environment.
One common theme is mystery. The female ghost often has a past that needs to be uncovered. Another theme could be redemption. Maybe she was a bad person in life and is now seeking to make amends. And of course, there's often a connection to Hogwarts, like she was once a part of the school community.
Friendship - turned - love is also very common. They start off as rivals or just classmates, but as they get to know each other better, feelings start to develop. This is often shown through shared adventures and challenges at Hogwarts.
Often, there's a theme of self - discovery for Harry. As he's in this unexpected situation, he has to reevaluate his life, his relationships, and his place in the wizarding world. There might also be themes related to the support or lack of support he gets from his friends.
The themes might include the disruption of the norm. Harry Potter is a hero figure, and this situation turns his life upside down. So it could explore how he copes with this sudden change in his identity. There could be a theme of secrecy as well, whether he wants to keep it hidden or not. And also the theme of acceptance, both from himself and from the people around him. The fanfiction might also touch on the implications for his relationships, like how it affects his relationship with Ginny or his other friends and family members in the wizarding world.
Another theme is the struggle between magic and normalcy. Pregnancy is a very normal human experience, but in the magical world of Harry Potter, it can be complicated by spells, potions, and magical creatures. So fanfictions often explore how the characters balance the two.
One common theme is the exploration of relationships. When a character gets pregnant, it can change how they interact with their friends, family, and romantic partners. Another theme is the struggle between personal desires and the expectations of the wizarding society. For example, a pregnant character may have to face the judgment of others in the magical community.
One common theme is the struggle between life and death. Since one of the characters is Death, it often explores how love can exist in such an extreme situation. For example, how can Harry, who is so full of life, find love with a being associated with death.