Yes, you might be able to recover a fanfic in certain situations. If you accidentally deleted it from your device, check your recycle bin or trash folder first. If it was an online fanfic and the site has a version history feature, you could try that. Also, if you had shared it with someone else, they might still have a copy that you can retrieve.
The possibility of recovering a fanfic varies. If it's within your own saved files or accessible through cached versions or backups of the website, you could get it back. However, if it's gone for good with no traces left, chances are slim.
Losing a fanfic file can be a pain, but there are still options. If you were writing it in a word processing program like Microsoft Word, there may be a temporary file that was created. You can usually find these in the program's auto - save or backup location. Also, if your computer has a system restore feature and you know around the time when you last had the file, you could try using that to get it back.
It can be tricky. First, see if you have any auto-backup software running on your device. Another option is to search for cached versions of the page using search engines. But there's no guarantee you'll be able to find it.
In many cases, it's possible to recover a deleted story. If it was on a cloud - based service, check the service's recycle bin or trash folder. There may be an option to restore it. If it was on your device, immediately stop using the device as much as possible to prevent new data from overwriting the space where the story was stored. Then, you can try using data recovery tools which scan your device for deleted files and attempt to restore them.