Definitely their friends from the show. Bonnie could be a great addition as she might be able to use her magic to protect Caroline during the pregnancy. Klaus could also be an interesting character to include. He has a complex relationship with both Tyler and Caroline, and his presence could add some drama and conflict, like he might try to use the baby for his own purposes.
Liz, Caroline's mother, should be in the story. Her reaction to her daughter being pregnant would be really important. It could range from disappointment to acceptance and support. Matt could also be included. He is Caroline's friend from before all the supernatural stuff, and his normal - human perspective could contrast with the crazy world Tyler and Caroline are in during the pregnancy.
The other werewolves could be involved. Tyler's werewolf pack might have different opinions about his relationship with Caroline and the baby. Some could be supportive, while others might see it as a threat to their pack. Also, Stefan could be in the story. He has always been there for Caroline in different ways, and he could offer his support and advice during this difficult time.
Stefan could also be a character in it. He has a history with both Klaus and Caroline. His moral compass might clash with Klaus' actions at times, which could lead to some interesting conflicts. And his relationship with Caroline as a former love interest could add an extra layer of drama to the married life of Klaus and Caroline.
One possible storyline could be Tyler and Caroline facing challenges during the pregnancy. Maybe there are issues with their families accepting it, or they have to deal with supernatural threats while protecting their unborn child. Another idea is that they discover some unique powers the baby might have which causes both excitement and fear.
Chat Noir is an obvious choice. His relationship with Ladybug is so central to the original story, and with her pregnant, his reactions and support would be a great addition. Marinette's best friend Alya could also be included. She could be the one Ladybug confides in, and Alya could use her journalistic skills to help keep Ladybug's pregnancy a secret if needed. And Master Fu could be in the story. He could offer his wisdom and guidance, especially when it comes to any potential threats to Ladybug or the unborn child.
One great fanfiction is 'Caroline and Tyler's New Beginning'. It delves into their relationship post - some of the major events in the show. It shows how they both grow and support each other in a world full of supernatural chaos. The author does a great job of capturing their personalities.
One great 'Vampire Diaries Tyler and Caroline fanfiction' is 'A New Beginning'. It explores their relationship in a post - series world where they have to face new threats together. The story really dives deep into their characters and how they've grown over the course of the series.
Finn Hudson could be an interesting character to include. He might be a bit clueless at first but then grow to be very protective of Emma and the baby. Santana could add some drama and spice to the story. Her sharp tongue could either be used to support Emma or cause some trouble, depending on the plot. Puck could also be in the story, perhaps he offers a different perspective on fatherhood since he has his own experiences related to it in the show.
Definitely her sisters, Phoebe and Paige. They are her closest family and would be there for her throughout the pregnancy. Leo, as her husband, is also crucial. He can provide support and love. Then there could be some of the recurring good witches or magical beings who could offer their help or advice. For example, Grams could appear in Piper's dreams to give her some grandmotherly wisdom about motherhood.
Brittany's parents should be in the story. Their reactions to her pregnancy could range from disappointment to full - on support, and this would add a lot of depth to the story. Also, Tina. She could be a great friend to Brittany, sharing her own fears and hopes for the future. And don't forget Finn. He could be the one who encourages Brittany to keep going with the glee club, saying that it's important for her and the baby to have that creative outlet.
The main characters are obviously Damon and Caroline. Damon is often portrayed as a complex and brooding vampire with a dark past. Caroline is a strong - willed vampire who has grown a lot throughout the series. In this fanfiction, they are the central focus as they deal with the situation of Caroline being pregnant.
Poseidon should definitely be included. His relationship with Sally and his reaction to the pregnancy would add a lot of depth. Percy Jackson, their son, could also be a great addition. His concern and protectiveness towards his mother during this time would be interesting to explore.