Fanfiction about Hijikata and Chizuru being pregnant: Where can I find it?
Another place to look could be FanFiction.net. However, the availability of such specific fanfiction might vary. It's important to note that when you search, make sure to be as specific as possible in your search terms. You might also want to check out some of the related fandom communities on social media platforms, where fans sometimes share their own fanfiction or know of good ones in this theme.
Some smaller, more specialized anime or manga fanfiction websites might also host this type of story. But be cautious when exploring new websites, ensure they are safe and reliable. You could also ask in relevant anime or manga forums. There are likely other fans who are into the same pairing and might be able to point you in the right direction.
You can try searching on fanfiction platforms like Archive of Our Own (AO3). There are often many different fanfictions about various scenarios, including this one. Just use the search function and type in the relevant tags like 'Hijikata', 'Chizuru' and 'pregnancy' to narrow down the results.