It could be a rival trainer. Rival trainers are often very competitive in the Pokémon world. Maybe this rival is jealous of Ash and May's progress and decides to betray them to slow them down. They might spread false rumors about Ash and May, causing other trainers to be distrustful of them.
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.
I'm not sure if there is specific fanfiction about May and Drew being pregnant. Fanfiction varies widely across different platforms. You could try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own.
It adds a new dimension to the Pokemon fandom. It allows fans to explore the romantic aspect between Ash and May which isn't fully explored in the official series. It gives fans a chance to see their favorite characters in a different light, with more complex emotions and relationships.
Obviously, Ash and Serena are the main characters. Ash has been on countless Pokemon adventures, and Serena has been by his side in many of them. In this particular fanfiction scenario, they are at the center of the story because of Serena's pregnancy, which will likely change their lives and their approach to Pokemon training forever.
One interesting story could be about Ash having to deal with the challenges of being pregnant while still trying to pursue his Pokemon journey. Maybe he has to balance training his Pokemon and taking care of himself during the pregnancy. Another could be a story where his friends support him through the whole process, like Pikachu being extra protective.
You can try some popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). They usually have a wide range of Pokemon fanfictions, and you might be able to find some with the 'Ash pregnant' theme by using their search functions.
One possible plotline could be that it's set in an alternate universe where some magic or strange phenomenon causes them to become pregnant. Another could be a scientific experiment gone wrong scenario. But these are just wild speculations as such a concept is very far - fetched from the original Pokemon concept.
I'm not sure if there is specifically an 'appropriate' one. Fanfiction can vary greatly in nature and content. You could try looking on well - known fanfiction websites like FanFiction.net or Archive of Our Own and search for it while filtering through the results to find something that adheres to your idea of appropriate.
It's appealing because it combines the love for Pokémon with a more human, emotional connection. Fans of the Pokémon series often love to see the characters in different emotional situations. When Ash and May cuddle, it adds a new layer of depth to their characters. They are not just trainers but also two people with feelings for each other. This can make the fanfiction more engaging as it explores their relationship in a more personal way compared to the main series where it's mostly about Pokémon battles and adventures.