Who could be the main antagonist in a 'Sabrina and Harvey pregnant' fanfic?

In this kind of fanfic, the plot could be quite complex. First, they need to figure out how they got pregnant, whether it was planned or not. Then, they face challenges like financial concerns if they are young. Their relationship might also be tested. Sabrina may have to hide her pregnancy from some in the magical world who might not approve. Harvey could be thinking about his future and how to support his family. There could also be a sub - plot about their friends helping them or some unexpected magical interference in the pregnancy that they have to deal with.

It could be another powerful dark wizard who sees the relationship between Sabrina and the Dark Lord as a threat to his own power and plans.

It could be Glimmer's over - controlling family. They might not approve of Cato and the pregnancy, and try to separate them. They could be the main source of conflict, constantly trying to manipulate Glimmer into getting rid of the baby or leaving Cato.

It could be the elders of Kushina's village. They might see the pregnancy as a betrayal of their village and try to stop it. They could be afraid of the influence the Raikage's child would have on their own power structure.

Sabrina is likely to be a central figure as she is the one carrying the baby. Her character might go through a transformation as she faces the challenges of pregnancy. Puck will also be a main character as he is part of the relationship that led to the pregnancy. His character arc could involve maturing and taking on more serious responsibilities.

Their relationship would likely become more serious. They'd have to rely on each other more and communicate better. No more just casual dating stuff.

Well, one possibility could be that it explores how Sabrina and Puck deal with the unexpected pregnancy in a magical world full of challenges. Maybe they have to face the reactions of their families and friends, who might have different views on their relationship and the pregnancy.

After their marriage, Sabrina and Harvey could become involved in a larger magical conflict. Sabrina's powers could put them in danger, but Harvey's loyalty and love for her would keep them together. They might also make new friends in the magical world who help them in their journey. Their married life could be a blend of normal, everyday activities like going to work and having dinner together, and extraordinary magical experiences like attending a wizard's ball or helping a magical creature in need.

Maybe it could be a new forensic scientist who is jealous of Brennan's position and sees her pregnancy as a weakness to exploit.

The main antagonist could be LeFou. He might be jealous of Gaston's new relationship with Belle and the fact that they are having a baby. So, he could try to create problems between them, like spreading false rumors in the village about Belle's past or Gaston's intentions.