Yes, there are some. You can try searching on fanfiction - specific websites like Archive of Our Own. There you might find some unique takes on the idea of a 'Harry pregnant potion' fanfiction. It could involve some creative plotlines where a potion causes an unexpected situation for Harry.
A common theme is the struggle for acceptance. Harry has to come to terms with what has happened to him. There may also be a theme of self - discovery. Through this strange experience, he might learn new things about himself and his place in the magical world. And of course, the theme of adventure as he goes on a quest to find out more about the potion and how to reverse its effects, facing various obstacles along the way.
I'm not aware of any such fanfiction that adheres to the original Harry Potter lore, as it goes against the established gender and biological norms of the series. Fanfiction often explores creative and sometimes out - of - the - box ideas, but this seems quite a deviation.
There might be a plot twist where the way to reverse the pregnancy is extremely difficult or has its own set of risks. Harry may have to make a tough decision between keeping the baby and facing the unknown consequences of the pregnancy, or trying to reverse it and potentially losing his own life or the life of the unborn. Also, it could turn out that the father of the baby is not who everyone initially thought, leading to a whole new set of relationship dramas within the story.
Well, in many such fanfictions, they might introduce magical solutions to deal with the physical challenges. For example, the potion could have some side - effects that magically adapt Harry's body to carry a child. Maybe there are special spells or potions to ease the pregnancy symptoms that are not typical for male bodies.
Well, he might initially be confused. Since it's a love potion, he could start having strong, uncharacteristic feelings for Dravo. Maybe he becomes overly affectionate towards Dravo, not really understanding why these new emotions are surging within him.
The potion could enhance Harry's magical powers. For example, it might make his spells stronger or more accurate. This would be useful in battles against dark wizards or in his general studies at Hogwarts.
Common themes in Harry Potter fanfiction include the further adventures of the main characters, exploration of different magical abilities, and the development of relationships like friendship and romance in a more traditional sense. For example, there are many fanfictions about Harry's further adventures after defeating Voldemort. In contrast, a plot where Lucius gets Harry pregnant with a potion is completely unheard of in terms of common themes and is a very odd and inappropriate idea compared to the usual themes.
There are also some original characters created in fanfiction who are potion geniuses. These characters can bring new storylines and perspectives to the world of Harry Potter potions. They might have unique ways of brewing potions or discover new potion recipes that change the magical world.
The love potion can initially create a false sense of love. For example, if Draco is under the influence of a love potion for Harry, he might act overly affectionate, which could make Harry uncomfortable at first. But it could also be a catalyst for them to start interacting more, which might lead to a real relationship later.