Carrie might become more cautious. She was perhaps carefree before, but with the pregnancy, she starts to think more about the future and the safety of the baby. Sebastian could become more protective. He might be a bit of a wild character initially, but now he's always on guard, making sure Carrie is okay and that nothing bad will happen to her and the baby.
One idea could be that they initially panic when they find out about the pregnancy. They might worry about how it will affect their careers. For example, if they are in a competitive field like music or acting. Then, they could start to plan for the future together, finding a new place to live that's more suitable for a family. They might also face some opposition from their families at first, but as time goes on, they prove that they are committed to each other and the baby.
Well, it depends. Some Carrie fanfiction can be really well - written and add interesting dimensions to the story. However, the quality can vary a great deal. You might find some that are not so great in terms of writing style or plot development. But overall, if you're a big 'Carrie' fan, it can be a fun way to engage more with the concept.
Carrie is purely fictional. The author crafted the story from their imagination, not based on real events or people. The elements and situations presented are made up to engage and thrill the readers.