I'm not entirely sure specifically as 'pan' could refer to various things like the pan - sexual identity. It might be a fanfiction exploring a character who is pan - sexual and becomes pregnant within the context of the fictional story created by fans. But without more context, it's hard to be more precise.
I'm not aware of any specifically popular 'pan pregnant fanfiction' works. Since it's a rather specific and perhaps not so mainstream concept, it may not have widespread popularity. However, in the vast world of fanfiction, there could be some hidden gems out there.
One challenge is staying true to the essence of the original Peter Pan story. Peter Pan is a character who represents eternal youth and freedom from the adult world. Introducing pregnancy into the story goes against this core idea. Another challenge is dealing with the potential reactions of the fan community. Some fans may be resistant to such a radical departure from the traditional narrative.
I'm sorry, I'm not aware of any specific fanfiction about this. However, you can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. They have a large collection of Dragon Ball fanfictions and you might be able to find what you're looking for there.
Perhaps there could be a plot where an enemy uses some sort of mind - control or magic on Trunks and Pan. Under this influence, they engage in a relationship that results in Pan getting pregnant. Then, the rest of the story could be about how they break free from the control and how they, along with their friends and family, deal with the situation. It would involve a lot of drama, with characters having to decide between loyalty to their friends and family and their own moral beliefs.
I'm not really into this kind of fanfiction specifically. However, generally in fanfiction, the stories could involve how they deal with the upcoming new life, like preparing for the baby, and the changes it brings to their relationships with family and friends.
One possible storyline could be that they accidentally have a child and then have to deal with the consequences in a world full of Saiyan politics and power struggles. For example, how would Vegeta react to his grandson being born in such unexpected circumstances?
There could potentially be such a fanfiction, but it might not be very common. Dragon Ball Z has a large and diverse fan base, and while many fanfictions explore different relationships and events, pregnancy for Pan might not be a mainstream theme. Some fanfictions focus more on battles, power - ups, and character development rather than this kind of family - related plot.
Some specialized fan communities or forums dedicated to the relevant fandom might also be a good source. Members there might share or recommend 'gt pan pregnant fanfiction' that they have come across.
In some 'gt pan pregnant fanfiction', the focus could be on the relationships around Pan during her pregnancy. For example, how her partner supports her, or how her friends react. It could explore the different dynamics and how they change as the pregnancy progresses.