It might also be a character who has a more complex or unexpected connection to Historia. For instance, there could be a plot twist where a character who was thought to be an enemy turns out to be the father, adding a whole new layer of drama to the story.
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.
According to the search results provided, there was no mention of someone getting pregnant in the movie. Therefore, I don't know who is pregnant in the Zhou Chuchu Three Maladies.
I recommend the novel,'After the Divorce, Young Madam Shocks the World Everyday'. The story was about a female protagonist who brought her two children to the peak of her life after her divorce. Although it was not explicitly mentioned that the stepfather's surname was Long and that he had great power, the female lead in the story experienced a divorce and became pregnant again, which fit the description of the problem.
The answer isn't straightforward. Different comic storylines present different scenarios. Sometimes it's a result of magical or cosmic events, and other times it might be a character with a hidden agenda.
Perhaps the fanfiction could focus on the reactions of the other characters. For example, Eren might have complex feelings about Historia's pregnancy, as it could symbolize a new hope for humanity in a way, or he could be worried about her safety in such a vulnerable state.
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.
Often, the stories of teen moms who got pregnant on purpose involve a combination of factors like a desire for attention, rebellion, or misinformation about the consequences. It's a challenging and often sad situation.