Esme Cullen, the matriarch of the Cullen family, would surely be part of the story. She would be very nurturing towards Bella during her pregnancy. Jasper Cullen might also be included, perhaps using his power to influence the emotions of those around Bella to keep her calm during the pregnancy. And of course, there could be other minor characters from the Twilight universe popping up in the fanfic.
In some fanfics, there could be a plot where Bella's pregnancy is a threat to the vampire - human truce. This would create a lot of tension as the vampire community has to decide how to deal with this new situation. Also, a plot could revolve around Bella's dreams and premonitions during her pregnancy, which could give hints about the future of her unborn child.
I would recommend 'A New Beginning for Bella and Edward'. This fanfic takes their story in a different direction after the events in the original series. It shows how they handle new challenges together and the growth of their love in the face of those difficulties. There are some really beautiful and heart - warming moments in it.
A great plot idea is Bella exploring her newfound powers during pregnancy. Since she's already had some unique experiences as a human in a vampire - filled world, pregnancy could enhance or bring out new abilities. Maybe she can communicate with the unborn child in a special way that no one else can understand. This could lead to some interesting scenarios where the baby gives her clues or warnings about upcoming events. Also, the family could be divided on how to handle these new developments, some seeing it as a great opportunity while others as a potential danger.
The popularity of Bella Cullen and Edward Cullen fanfiction comes from the fact that fans were so in love with their relationship in the original books. People wanted to explore more of what could have been, or different scenarios for them.
One aspect of Carlisle Cullen x Bella fanfiction could be the exploration of their unique relationship within the Twilight universe. Carlisle is an old and wise vampire, while Bella is a young human. Fanfictions might delve into how Carlisle's self - control and moral code interact with his growing feelings for Bella. It could also show how Bella views Carlisle in a different light compared to Edward, perhaps seeing him more as a father figure or a source of guidance at first, and then developing more complex emotions.
One characteristic is the exploration of Bella's potential. Since she's a baby in these fanfictions, it could be about how her future abilities might start to show early. It might also include elements of how the Cullen family adjusts to having a baby in their midst, like changing their lifestyle or protecting her from the outside world. This type of fanfiction can also be very family - oriented, highlighting the relationships within the Cullen family with baby Bella as a central figure.
I also like 'The Healer's Touch'. In this fanfiction, Carlisle uses his medical skills not just to heal Bella physically but also to help her through some emotional traumas. It's a heart - warming story that shows a side of their relationship that we don't often see in the original series. It's full of tender moments between them.
The Cullen family would likely support Rosalie in various ways. Carlisle, with his medical knowledge, would be constantly monitoring her health and that of the baby. Esme would probably be there to offer emotional support, being like a mother figure to Rosalie. The others, like Emmett, Rosalie's partner, would be her physical protectors.
One common theme is the exploration of their eternal love. Writers often expand on how their love endures through different challenges. Another theme is the power dynamics, especially considering Edward's vampire nature and Bella's human - turned - vampire state in some stories.