Who could be the antagonists in an Elijah and Katherine baby fanfiction?

Well, it could be about how they deal with the unexpected pregnancy. Maybe they struggle to accept it at first, then gradually come to terms and start preparing for the baby.

One idea could be that the baby has some sort of special power. Since Elijah is a powerful vampire and Katherine has her own unique charm and skills, their baby might inherit something extraordinary. Maybe the baby can control the minds of vampires or has an uncanny ability to sense danger.

The main characters are clearly Elijah and Katherine. They are the central focus of this fanfiction, especially since the title mentions them directly and the pregnancy is related to them.

Obviously, Katherine Pierce would be one of the main antagonists as she is the one stealing the baby. But Klaus himself could also be seen as an antagonist in a sense. Since he is a powerful and often cruel character, his actions to get his baby back might be quite ruthless, making him seem like an antagonist to those who oppose his methods.

A group of mischievous animals could also be antagonists. They might be jealous of the attention the baby gets from all the other animals in the neighborhood. So, they start playing pranks on Alvin and Brittany, like stealing the baby's toys or making a mess in their yard. But in the end, they could learn to accept the baby and become friends.

Rittenhouse could be antagonists. They might see the baby as a tool or a threat to their plans for controlling time. They could try to kidnap the baby to use its potential powers for their own evil purposes.

It could be Orochimaru. He might be interested in the baby's unique genetic makeup, thinking he can use it to create more powerful experiments. He has always been obsessed with power and the baby's combination of Naruto and Temari's abilities would be very appealing to him.

There could be a mysterious dark - type Pokémon that is attracted to the unique energy of the baby. It constantly tries to get close to the baby, which poses a threat to the baby's safety. Ash and Cynthia have to fight this Pokémon off while also trying to figure out why it is so interested in their baby.

Demons might also be antagonists. They sense the new life which has a connection to powerful shadowhunters like Jem and Tessa and see it as an opportunity to strike at the shadowhunter community. They could try to possess the baby or harm it in some way.

Maybe some of the old foes from their past could resurface as antagonists. For example, those who were against Marius and Cosette being together in the first place might see the new baby as a way to cause trouble. They could try to spread rumors or create difficulties for the new family.