There could be. Check out various fanfiction communities. They often have filters or tags that can help you find the more family - appropriate stories about Eren and Historia in this situation. It may take some searching, but they do exist.
Yes, there could be. Some fanfiction writers might create a story about Eren and Annie having a child in a very innocent and family - friendly way. For example, they could focus on how they prepare for the baby, like building a nursery or choosing baby names. It might also explore their relationship growing stronger as they anticipate the arrival of their child, without any inappropriate content.
There may be. There are fanfic communities that strive to create content suitable for a wide range of audiences. In the case of an 'eren gets mikasa pregnant fanfic', it could be written with themes like family values, the growth of their relationship, and the anticipation of new life. For example, it could detail how Mikasa's character might change as she prepares to be a mother, and how Eren steps up to support her, all while keeping the story appropriate for all ages.
Yes, there are quite a few. You can start by looking on fanfiction.net or Archive of Our Own. Some fanfictions might explore their relationship in an AU (alternate universe) setting, like a modern-day scenario where they meet and get married, while others could be more in line with the original story's themes and settings but with a different plot twist leading to their marriage.
No, Eren doesn't marry Historia in the manga.
One idea could be the two of them preparing for the baby. Historia might be learning about different parenting styles, and Eren could be building a nursery. It could show their growth as individuals and as a couple.
There might be some. You can start by looking on fanfiction platforms like FanFiction.net or Archive of Our Own. Search for stories that are rated as 'General Audiences' or 'Teen' to avoid inappropriate content. Some authors might write about the idea of Hitsugaya and Rukia starting a family in a very innocent and platonic way.
There might be some out there. Some fanfiction writers may explore the concept in a non - inappropriate way, like focusing on a future where they are expecting in a very innocent, family - centric story setting. But it can be hard to find among all the fanfiction content.
There might be some. You could try searching on fanfiction platforms that have a family - friendly filter. Some writers might create a story where Elsa and Hans have a more positive relationship without inappropriate content, perhaps focusing on a different kind of emotional connection and the idea of starting a family in a more innocent way.
It's possible. Fanfiction often takes existing characters and gives them new storylines. In the case of Optimus Prime and Arcee, a 'pregnant' fanfiction could be about them having a new form of life or a project that they are nurturing together, which is presented as a pregnancy - like concept. You may need to do some digging through various fanfiction communities and websites to find one that suits your taste and is suitable for all viewers.
One common theme is the exploration of a new world order. Since Eren and Historia are both important characters, their marriage could signify a change in the power dynamics of their world. Another theme is the growth of their relationship, from initial attraction to a deep, committed love. And often, there's the theme of facing challenges together, whether it's from outside forces or internal conflicts within their relationship.