One common theme could be the relationship dynamics. It might explore how Astoria and Draco's relationship changes during her pregnancy. Another theme could be the anticipation and fears associated with bringing a new life into the wizarding world, especially considering the Malfoy family's history.
I'm not sure about specific Astoria Malfoy pregnant fanfiction off - hand. You could try searching on fanfiction websites like Archive of Our Own. They have a vast collection of Harry Potter - related fanfictions and you might be able to find some that feature Astoria Malfoy in this situation.
One great Draco and Astoria pregnant fanfiction is 'A New Beginning' which beautifully depicts their journey into parenthood. It shows Draco being very protective and Astoria handling the pregnancy with grace.
One common theme is redemption. Draco was a bit of a bully in the original series, and in these fanfictions, his marriage to Astoria is often part of his journey towards becoming a better person.
Draco is often portrayed as a complex character. He's still the proud Slytherin but with a softer side. After the war, he's more introspective. Astoria is usually seen as intelligent and kind - hearted. She can see past Draco's former arrogance and helps him grow.
One popular theme is their post - war relationship. Writers often explore how they come together after the events of the Harry Potter series, considering Draco's past actions and Astoria's family background. Another common theme is their family life, like how they raise their child Scorpius.
In my experience, Reddit has some hidden gems when it comes to this type of fanfiction. There are subreddits dedicated to Harry Potter fanfiction. You can post a request for Draco Malfoy and Astoria Greengrass fanfics, and often the community will come through with some great suggestions. You might also want to check out some of the smaller, more niche fanfic websites that focus specifically on Harry Potter.
There's a fanfic called 'Draco and Astoria: A New Beginning'. In this story, it focuses on how they met again after the war and how their relationship slowly developed into marriage. It has some really sweet moments between them and gives a different perspective on Draco's character.
A plot could involve Astoria being a secret healer who treats Draco after he gets injured in a dark magic - related incident. Draco is initially suspicious of her motives, but over time, he realizes she's truly there to help him and their relationship blossoms. This could explore themes of trust and redemption.
Draco had gone through a dark period during the wizarding war. Astoria, with her kind heart and open - mindedness, was like a light for him. They started to communicate more and more. As they shared their thoughts and feelings, Draco found himself falling for her. It was her unique personality in the context of the wizarding world that made their love possible.