Perhaps it could be a character we haven't seen much in the 'Harry Potter' universe yet. A mysterious wizard who has some connection to Queenie's past or a new character introduced specifically for the fanfic. This could open up new storylines about the wizard's origin, his intentions, and how he fits into Queenie's life now that she's pregnant.
One possible plot could be that Queenie discovers she is pregnant during a time of great unrest in the wizarding world. She might be worried about the future of her child, especially considering the ongoing threats. Maybe she and her partner (whoever that may be in the fanfic) have to go into hiding to protect the unborn baby from dark forces. They could be constantly on the move, seeking safe places within the wizarding community or even among the No - Majs (Muggles).
Perhaps it's a completely new character, a powerful and mysterious wizard who came into Harry's life. Their encounter led to Harry's pregnancy, and the fear of this unknown wizard's intentions and the reaction of the English wizarding community makes Harry leave England.
It could be Damon. Given their complex relationship in the show, it would be an interesting take on how they handle this new situation together. Damon's bad - boy nature might be challenged as he steps into the role of a potential father.
The father could be a new character introduced specifically for the fanfic. This new character could be from a different background or have some unique qualities. He might have come into Mikan's life unexpectedly and their relationship developed quickly, leading to the pregnancy.
It could be her long - time boyfriend. They've been in a loving relationship, and the pregnancy was a natural progression of their relationship.
Apollo could be Harry's father. Apollo is the god of music, poetry, and prophecy among other things. If Harry was Apollo's son, he could have an innate talent for divination that is far beyond what he showed in the original books. He might also be able to use music as a form of magic, perhaps charming his enemies or healing his friends with melodies.
It could be Asuma. Given their relationship in the original story, it would be a logical choice. Their connection was strong, and they had a deep emotional bond. So, it would make sense for him to be the father in a fan - made pregnancy story.
It could be another powerful legendary Pokémon like Zekrom. Their opposing yet complementary natures could have led to a unique connection resulting in Reshiram's pregnancy.
Well, it could also be Gale. Although Katniss has a more complex relationship with Peeta, her long - time friendship and some underlying feelings for Gale could potentially make him the father in a fanfic. It would add a whole new layer of drama to the story.
It could be her long - time partner, if she has one in the original story. Maybe it's someone she's been in a committed relationship with for a while and they've been planning to start a family.