Yes, there are likely some out there. You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Bella and Stefan pregnant' in the search bar and see what comes up.
There could be. 'Twilight' has inspired a great deal of fan - created content. However, not all fanfics are easy to find. You might need to use specific search terms related to the relationship between Edward and Bella when she's pregnant, such as 'Edward Bella pregnancy fanfic'. Some fanfics may also be restricted depending on the platform's rules and the nature of the content.
One idea could be that Felix and Bella face challenges during the pregnancy. Maybe they have to deal with family reactions that are not all positive. Some family members might be worried about their financial situation or their young age.
She could be heartbroken. After all, she's pregnant and the person she loves has left her. She might feel abandoned and alone, crying a lot and wondering why Edward would do such a thing.
One possibility is that Klaus would try to claim the baby as his own, regardless of who the father really was. He's a possessive character, and having a child with Bella could be a way for him to have more power or control. Marcel, on the other hand, might be more concerned about Bella's well - being.
Sure. There might be some new characters created specifically for this fanfiction. Maybe a wise elder in the werewolf community who gives advice to Jacob about how to handle the situation with Bella and the pregnancy. Or perhaps a human friend of Bella's who discovers the truth and has to deal with the shock of the supernatural world.
Edward is an obvious choice. As the father of the baby, his role is crucial. He can be portrayed as overprotective, or struggling to understand the new situation. Jacob could also be included. His relationship with Bella is complex, and his reaction to her pregnancy could add a lot of drama. Then there's Carlisle. As a doctor - like figure in the vampire world, he can offer medical advice and support during the pregnancy.
Love and support are common themes. Usually, Bella's relationship with Edward or other important characters deepens as they support her through the pregnancy.
Bella is the main focus, of course. If it's in a crossover fanfiction, other characters from different fictional worlds could be included. But in a more traditional setting, characters like Rosalie might be there. Rosalie, with her own experiences related to motherhood or the lack thereof, could have a complex relationship with Bella during her pregnancy. Alice might also be a common character, using her ability to foresee things related to the pregnancy, like whether it will be a smooth process or if there are any upcoming challenges.
Another theme is the transformation of Bella. Physically, she is changing, but also her role in the story. She becomes more nurturing and protective even before the baby is born. This is shown in different ways in various fanfics, like how she starts to decorate the nursery early on.