Another theme could be the challenges Athena faces during her pregnancy. This could include dealing with her own insecurities, as well as any potential threats or difficulties in the fictional world she belongs to. For example, if she is in a world with magic, there could be magic - related issues during her pregnancy. Also, the theme of mother - to - be's growth and self - discovery is quite common. As she is about to become a mother, Athena may go through a journey of understanding herself better and preparing for the new role.
I'm sorry, I don't have specific 'athena pregnant fanfic' to recommend directly. You could try searching on fanfic websites like Archive of Our Own (AO3). They have a vast collection of fanfictions and you might be able to find something related to Athena in a pregnant situation there.
A common theme can be the future of the baby. Fanfic writers might speculate on what kind of person the baby will grow up to be, especially considering Athena's own qualities. Will the baby inherit her fighting spirit or her kind heart? It can also touch on how the world around Athena changes with the impending arrival of a new life, like her enemies might even have a change of heart seeing her in this vulnerable and yet powerful state of creating new life.
Writers can make the storyline believable by adding conflict. For example, there could be some people who are against Athena having a baby, either for political reasons in the fictional world or because they fear she'll be distracted from her duties. Also, the emotions need to be realistic. Athena might have fears about being a mother, especially if she has a dangerous lifestyle. The writer should also think about how the pregnancy will progress. Is it a normal pregnancy or are there complications? This can add depth and realism to the fanfic.
There might be some fanfiction on this theme, but it's important to note that in the original Percy Jackson mythology, such a situation goes against the established lore. However, in the world of fanfiction, some creative writers may come up with unique and interesting takes that still respect the overall spirit of the series without delving into inappropriate or disrespectful content.
Another way is to show a begrudging respect. Ares might respect Athena's intelligence in battle even though he is more impulsive. In the fanfic, there could be a scene where Ares witnesses Athena outwit an enemy with her wisdom, and he has to admit, albeit reluctantly, that she has her merits. Then, this could lead to a more complex relationship where they start to collaborate on some military matters.
A plot could revolve around a mortal who prays to both Ares and Athena simultaneously. The two gods are intrigued and descend to the mortal world. There, they find that the mortal's problem is a complex one that requires both war - like strategy and wisdom to solve. As they work together, they discover new aspects of each other and their relationship evolves.
Well, one possible plot could be that Annabeth's pregnancy brings new challenges and responsibilities. She might have to deal with the reactions of her friends in the 'Mark of Athena' world. For example, Percy could be both excited and worried about becoming a father. And they might face threats from enemies who see the unborn child as a target or a symbol of power.
Poseidon might become more protective. Usually a powerful and sometimes brash god, with Athena pregnant, he could become more cautious and less likely to engage in his usual power plays. He would be focused on safeguarding Athena and the unborn child.
Perhaps in a fanfiction, there could be a magical curse that causes Athena to become pregnant by Poseidon. This could lead to a power struggle among the gods as they fear the implications of a child born from such a union. The story could then focus on how Poseidon and Athena try to protect their unborn child from the scheming of other deities. They might have to seek help from unlikely allies and face numerous challenges along the way.