One possible plotline could be that while Ash is sick, his Pokémon have to take care of him. Pikachu might gather berries to make a special potion to help Ash get better. Another could be that Ash's friends are on a journey without him because he's too sick to travel, and they constantly worry about him and send back items to help his recovery.
Professor Oak could also come to visit Ash. He might bring some rare Pokémon medicines from his lab. And of course, Ash's mom would be there. She would cook all of Ash's favorite foods and make sure he takes his medicine on time and gets enough rest.
Maybe it's a legendary Pokemon in disguise. In some fanfictions, legendary Pokemon often play important roles. It could give Ash the egg as a test or because it senses that Ash has a pure heart. Another possibility is that it could be a young trainer who can't take care of the egg anymore and trusts Ash to do a good job.
Misty is a very likely candidate. She has been with Ash from the early days of his journey. They have a deep bond and have shared many adventures together. Their relationship has always had a bit of a romantic undertone, so in a fanfiction, it would make perfect sense for them to get married.
I'm not aware of any non - inappropriate 'Ash gets a Pokemon pregnant' fanfiction. This concept is not in line with the family - friendly nature of the Pokemon franchise. Fanfictions usually revolve around themes like battles, training, and the bonds between trainers and Pokemon. A concept like this is quite abnormal and would not be easily found in the realm of proper fan - created works.
In the Pokemon community, 'Ash sick' fanfictions can also bring fans together. People can discuss their favorite plots where Ash is unwell. They might share their thoughts on how accurately the Pokemon's personalities are depicted in these stories. For example, if Bulbasaur is shown as being very nurturing towards Ash when he's sick, fans can debate whether that's in - line with its character in the original series.
One popular 'Pokemon Ash sick' fanfiction might be the ones where Ash gets sick during a big Pokemon battle tournament. In these stories, his Pokemon have to step up and take care of him while also trying to continue in the competition. For example, Pikachu might use its electric powers in a gentle way to warm Ash up when he has a fever.
The uniqueness lies in the potential character development. When either Ash or Paul is sick, it gives the author a chance to explore their more vulnerable sides. For example, a sick Paul might show a side of him that's less competitive and more in need of friendship, which is a new aspect of his character.
There's a fanfic titled 'When Ash Fell Ill'. This one focuses more on Ash's internal struggle while being sick. He feels useless and is frustrated that he can't go out and catch more Pokemon or train. But his Pokemon stay by his side, and through their bond, he slowly starts to recover. It's a heart - warming story about the relationship between Ash and his Pokemon.
One common theme is the display of friendship. When Ash is sick, his friends, both human and Pokemon, come together to support him. They might sacrifice their own goals for a while to take care of him. Another theme is vulnerability. We usually see Ash as a strong and determined trainer, but when he's sick, he becomes vulnerable. This shows a different aspect of his character.