There may or may not be such a fanfiction. 'Game of Thrones' has a huge fanfiction community, and they come up with all sorts of creative ideas. However, Arya's character arc in the original series is more about revenge, survival, and self - discovery. The idea of her getting pregnant, especially with Jaqen, is a bit out of the ordinary for the general tone of the story. So, it's possible that it exists in some very specific or out - there fanfictions, but it's not a common theme.
I haven't come across a fanfiction with that exact plot. Fanfiction often explores different relationships and storylines in the 'Game of Thrones' universe. While Arya and Jaqen have an interesting relationship, pregnancy isn't a typical aspect explored in mainstream fanfictions about them. It could be that it exists in some more niche or less well - known works, but it's not something I've seen frequently.
Perhaps in the fanfiction, Arya and Jaqen form an unexpected bond due to the pregnancy. Jaqen, who is usually a mysterious and somewhat aloof character, could show a more caring and protective side. They might have to find a safe place to stay, away from the chaos of their normal lives, and figure out how to raise a child in a world full of danger and intrigue.
Well, one possible plot could be that they have to face a lot of challenges together. Since Arya is a strong - willed character, she might struggle with the idea of being pregnant at first, especially in a world as dangerous as 'Game of Thrones'. Jaqen, on the other hand, could be protective. They might have to hide from their enemies who would see a pregnant Arya as a weakness or a valuable target. Another aspect could be how they plan for the future of the child in a world full of chaos and power struggles.
I'm not sure if there's a specific fanfiction where Arya is pregnant. Fanfiction is a vast world with different interpretations. Some fanfic authors might be interested in exploring this kind of relationship development and the implications of Arya being pregnant, but it might also deviate from the original tone and themes of the 'Eragon' series. You could start by looking at fanfiction archives dedicated to 'Eragon' and use relevant search terms.
Arya may become more confident in her abilities with Jaqen's guidance. She could grow from a somewhat reckless girl into a more calculated and strategic assassin. For example, she might learn to better plan her attacks instead of acting on impulse all the time.
At first, it could be a teacher - student relationship, with Jaqen teaching Arya more advanced skills of the Faceless Men. As time goes on, they might become comrades, relying on each other in dangerous situations.
To develop the story further, you can introduce conflicts related to the pregnancy. For instance, Arya's physical condition might limit her ability to fight or travel as she used to. This can create tension as she tries to overcome these limitations while still protecting herself and her unborn child.
For Arya, focus on her growth from a vengeful girl to a more complex character. Show her learning from Jaqen, not just in terms of skills but also in understanding different ways of life. Let her struggle with her identity as she is influenced by Jaqen.
Another plot could be centered around Jaqen teaching Arya some of his unique skills. Arya is already a skilled assassin, but Jaqen has his own brand of magic - like his ability to change his face. He could pass on some of this knowledge to Arya, and they could use it to infiltrate enemy strongholds and carry out their plans.
One common theme is the growth of Arya. With Jaqen in the story, Arya often has to learn new things, whether it's about combat or about the world around her, so her growth as a character is a big part.
I'm not sure if there is specific fanfiction about Arya and Eragon being pregnant. Fanfiction can cover a wide variety of themes and scenarios, but it might not be a common or mainstream one in the Eragon fan community. You could try searching on major fanfiction websites like FanFiction.net or Archive of Our Own to see if such works exist.