Well, pregnant fanfic is basically fanfiction that centers around the concept of pregnancy. Some writers use it to add a new dimension to the characters they love from a show, movie, or book. For example, it might explore how a character's pregnancy would change their relationships with other characters, or it could be a way to introduce new plot twists. It's a creative way for fans to expand on the existing story in a very specific and often personal way.
There are also some smaller, niche fanfic platforms that might have what you're looking for. However, these can be a bit harder to find. Social media groups dedicated to Pokémon fanfiction could be a good source too. Sometimes fans will post links to their works or recommend other authors' fanfics that involve a pregnant Latias.
Some dedicated Bughead fan communities on social media platforms like Tumblr or Reddit might also be a source. Members often share and recommend their favorite fanfics, and there could be some that feature a pregnant Bughead. You can post a request asking for such fanfics in these communities as well.
There are also some smaller, niche fanfic communities dedicated to MacGyver. These might not be as well - known as the bigger platforms, but they could potentially have some unique 'MacGyver pregnant fanfic'. You can try searching for MacGyver fanfic communities through search engines. Once you find them, look for their fic libraries or search functions within the community. But always be cautious when accessing new websites and make sure they are safe and legal.
You need to do some research on pregnancy if you want to make the fanfic realistic. Look into things like the different stages of pregnancy and how a woman might feel. For Hilda's story, also think about how her friends and family would react. You can start with an outline, like introducing the pregnancy in the first chapter and then following her journey through it.
Another option could be to check out dedicated fandom - specific forums or communities. Sometimes, fans within these smaller communities share their own fanfics or know where to find ones that are more difficult to come across on the larger platforms. But be aware that these may also have their own rules and regulations regarding fanfic sharing.
Fanfiction.net is also a place to check. There are many different types of fanfics there, and with a proper search using the keywords 'usagi pregnant', you might find some interesting stories. However, the quality can vary, so you may need to sift through a bit.
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 fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfics, and you're likely to find many 'Richonne pregnant fanfic' there.