Some dedicated fanfiction forums might also be a good place to search. These forums usually have sections for different pairings. Look for ones that focus on the game or series that Niles and Corrin are from, and you might find some great fanfics about them.
You can try fanfiction platforms like Archive of Our Own (AO3). There are often a large number of fanfics related to various pairings, including Corrin and Xander. Just use the search function and type in their names. Another option could be FanFiction.net, although the content quality can vary more there.
You can try looking on popular fanfiction websites such as Archive of Our Own (AO3). There are often many different fanfictions related to Fire Emblem characters, including ones about Niles and Corrin. Just use the search function and type in the relevant keywords to see if there are any stories that focus on their relationship and a possible pregnancy.
The plot is also crucial. It could be a story that takes place within the world of the game, perhaps a side adventure that Niles and Corrin go on together. Or it could be an alternate universe story where they meet in a different setting, like a modern - day city. A good plot keeps the reader engaged and eager to see what happens next.
You can also check out some Fire Emblem - related forums. Sometimes fans share their fanfictions there. Just be aware that the quantity might be smaller compared to the big fanfiction platforms.
You could also try searching on social media platforms like Tumblr. There are many fanfiction writers who post snippets or links to their full works on their blogs. Look for tags related to Corrin and fanfiction. But be aware that the organization might not be as systematic as on dedicated fanfiction websites.
You can try fanfiction websites like Archive of Our Own (AO3). There are a large number of fanfictions there. Just use the search function and type in 'female Corrin x Leo' to find relevant works.
I'm not sure about specific 'niles x male corrin fanfiction' works. But you can try searching on popular fanfiction websites like Archive of Our Own. There are usually a wide variety of fanfictions on different pairings, and you might find some great ones there.
Some smaller, niche fanfic communities dedicated to the source material that Corrin is from might also have such fanfics. You can search for forums or groups related to that particular fandom. These communities often have their own collections or recommendations, and members might be able to point you in the right direction to find the 'Corrin pregnant fanfic'.
You can try looking on some popular fanfic websites like Archive of Our Own (AO3). There are often a wide variety of fanfics for different pairings, and it's likely that you'll find some for Female Corrin x Camilla there.
A plotline might involve Niles and male Corrin having to go on a quest together. During this journey, they face various challenges that force them to rely on each other and in the process, their relationship deepens into a romantic one. For example, they could be exploring a dangerous, uncharted territory where they have to protect each other from wild beasts or solve complex puzzles to progress. There could also be a plotline where Niles has a secret that he is hesitant to share with male Corrin, but as their relationship grows, he eventually reveals it, which either strengthens or temporarily strains their bond.