Most legitimate Pokémon fan communities do not promote or support fanfics with inappropriate themes like that. Instead, there are great fanfics about Ash's journey to become a Pokémon master, his relationships with his Pokémon and his friends, for example, 'The Journeys of Ash and Pikachu' which details their various encounters and growth.
I'm not aware of any specific 'Ash Ketchum impregnation fanfic' stories as such content often goes against the family - friendly nature of the Pokémon franchise. Fanfics usually focus on adventures, friendships and Pokémon battles in the Pokémon world.
No. Pokémon is a franchise that is family - friendly and aimed at a wide range of ages, especially kids. Such a fanfic with this kind of theme is not in line with the spirit of Pokémon and is inappropriate for the general Pokémon fan base.
One popular 'Ash Ketchum and Serena fanfic' story could be about their adventures in a new region that wasn't shown in the original series. Maybe they discover a new type of Pokémon together and their relationship deepens as they face challenges in taming it.
One good fanfic could be 'Ash's Homecoming'. It focuses on Ash returning home to Pallet Town and his heartwarming interactions with Delia. It shows their strong bond through simple daily activities like having dinner together and sharing stories of his adventures.
One idea could be that Ash sacrifices himself to save his Pokémon during a really intense battle against an extremely powerful and evil Pokémon. Another might be related to a disease spreading in the Pokémon world that Ash contracts and unfortunately doesn't survive. Maybe in a fanfic, he gets caught in a natural disaster in a far - off region while on a journey and perishes.
One popular Ash Ketchum gay fanfic might be those that explore his relationship with another male character in a new and interesting way. For example, some might focus on his bond with Gary Oak in a more than just friendly context. However, it's important to note that fanfics can vary greatly in quality and content.
I'm not aware of any one particular fanfic that is extremely popular in this very specific category. Fanfic popularity can vary a great deal among different groups of readers.
One popular story could be 'Ash's Unusual Adventures in the Harem World'. In this, Ash might find himself in a world where he has to deal with multiple female companions in unexpected ways. Another could be 'Ash and the Harem of Pokémon Trainers', where female trainers from different regions are all attracted to Ash's unique charm and skills.
One popular Ash Ketchum and Lillie fanfiction might be those where they go on an adventure together in a region not explored in the main series. They could face new and powerful Pokémon and have to rely on each other's skills to overcome difficulties.
There are fanfics that explore Ash's relationships in more depth. Maybe one where he has a heart - to - heart with Pikachu about their long journey together. In some fanfics, Ash might also have to deal with his own insecurities when facing extremely powerful opponents, which adds a whole new layer to his character.
One 'Ash Ketchum sad fanfic' could be about him losing his Pikachu in a battle against a powerful and evil trainer. The grief and sense of loss would be palpable as Ash realizes he's without his best friend. Another might be Ash feeling left out and sad when his friends all achieve their big dreams but he seems to be stuck in his journey. There could also be a fanfic where Ash discovers that he has a terminal illness and has to face the fact that his Pokemon journey might be cut short.