It could be a new character created specifically for the fanfiction. Maybe a witch who Sirius meets during one of his adventures away from his usual group of friends.
Perhaps it could be a minor character from the original series that no one really paid much attention to before. For example, a young witch who was working in the background at Hogwarts and caught Sirius' eye. Their relationship could then develop in unexpected ways leading to the pregnancy.
Another possibility could be Sakura. Although she had feelings for Sasuke for a long time, in a fan - created scenario, things could have taken a different turn and she could end up in a relationship with Naruto and get pregnant. However, this would be quite a departure from the original plot dynamics.
It could be Ginny Weasley. Since they have a relationship in the original series, it's not too far - fetched to imagine a scenario where she gets pregnant. Maybe they got carried away during a time of peace in the wizarding world.
Maybe it could be a new character created specifically for the fanfic. This new girl could be from a traveling group of merchants who Naruto meets during one of his missions. Their encounter could lead to a relationship and ultimately the pregnancy.
One possible storyline could be that Sirius initially panics when he finds out about the pregnancy. He might struggle with his responsibilities as he has a rather wild and carefree nature in the original story context. He could then gradually grow into the role of a father - to - be, facing challenges from his friends and family who may have different expectations.
Blair could also be a character who is made pregnant in fanfiction. This could lead to a whole new set of storylines, like how she would balance her ambition with impending motherhood and how it would affect her relationship with Chuck.
There could be emotional consequences. Harry might feel a mix of fear, excitement, and confusion. The girl could also experience a range of emotions, from worry about the future to joy at the thought of having a child with Harry. And they both would need to figure out how to co - parent in the world of the fanfiction.
Well, in this 'natsu gets a girl pregnant fanfiction', a big consequence would be the social aspect. Natsu and the girl might face judgment from their community or society within the fanfiction world. They would need to deal with how people perceive them. Financially, Natsu might have to find ways to support the family, which could lead to him taking on different jobs or quests. And there's also the emotional consequence for the girl, who might be dealing with a whole range of feelings from fear to excitement about motherhood.
In the fanfiction, a likely consequence could be a strain on Ichika's relationships. His family might be disappointed or angry, and his friends could react in various ways. Also, his relationship with the girl would change drastically as they have to navigate through the pregnancy together. There would be a lot of emotional turmoil as they deal with their own feelings, society's expectations, and the future of the unborn child.
There may be such fanfiction in some niche corners of the internet, but this goes against the original nature of the Harry Potter series and is also a rather strange and inappropriate concept. J.K. Rowling's original works don't have any such plotlines, and most official and mainstream interpretations stay true to the original characters' relationships and story arcs.
Well, in the fanfic, Harry might first struggle with the news. He could be in a state of denial at first. Then, as he accepts it, he starts to plan for the future. He might look for a job or figure out how to continue his studies while also being a father. The girl, on the other hand, could be having her own set of problems like dealing with her family's reaction and her own health during the pregnancy.