Davina could be an ally too. She has a good heart and her own powers as a witch. She might be sympathetic to Hayley's situation and use her magic to create protective spells around Hayley and the baby. Also, she could act as a mediator between Hayley and the other factions in the city, given her relationships with different groups.
The main characters are Klaus and Hayley. Klaus is a complex and powerful vampire - werewolf hybrid, known for his often - ruthless ways. Hayley is a werewolf. Their relationship is central in this fanfiction, especially with Hayley being pregnant.
The pregnancy can transform Hayley into a more nurturing figure. She'll start thinking about the future in terms of her child. This could mean she becomes more involved in community - building or trying to create a better world for her baby to be born into. She might also develop a stronger sense of motherly instincts, which could be both a strength and a vulnerability as she navigates the complex and often dangerous world of 'The Originals'.
Perhaps a plot where Hayley discovers something unique about her pregnancy that is related to the werewolf or vampire lore in the show. For example, her unborn child could have powers that start manifesting while still in the womb, and she has to figure out how to handle this new development.
It could be the witches. They might see the baby as a threat to their power or a tool to gain more power. So they try to either take the baby or harm it.
One possible storyline could be about how Klaus and Hayley deal with the impending arrival of their baby in a world full of supernatural threats. They might have to protect their unborn child from their many enemies.
The main characters are obviously Hayley, Klaus, and their baby. Hayley is a strong werewolf, Klaus is a powerful hybrid, and their baby is a significant part of the story as it combines their heritages.
A popular choice could be Klaus. Given their complex relationship in the original story, it would add a whole new layer of drama. His reaction to Caroline being pregnant would be interesting, especially considering his character's history and his own desires for power and family.
The Reds could also be allies. Simmons, with his logical thinking, could help Tucker understand the medical aspects of his pregnancy. And Grif, while he might seem lazy, could offer some comical relief and distraction for Tucker when he's feeling stressed about the pregnancy.
I really liked a fanfic called 'Love in the Bayou'. It shows Hayley and Klaus in a post - apocalyptic version of the bayou. Their love is a source of strength in this harsh new world, and it has some really intense and passionate moments between them that are very well - written.
A possible plot is that Hayley discovers some unique powers or prophecies related to her unborn baby during her pregnancy. This could lead her on a journey to find out more about the baby's destiny. Also, the pregnancy could be used as a way to bring different factions in the 'The Originals' world together, either in support or against her.