One common theme could be the struggle of dealing with the unexpected pregnancy. Given their complex relationship and the challenges they face in the Buffyverse, it adds an extra layer of drama. Another might be how their friends and allies react to the news.
If Buffy decides to tell Angel, their relationship could become more complicated. Angel might feel a sense of responsibility but also be scared. He could be hesitant about getting involved due to his vampire nature.
One popular storyline could be the challenges they face as a couple with a baby on the way. For example, how they protect the unborn child from the various threats in their supernatural world. Another might be the reactions of their friends and allies. Some fanfictions might explore how Buffy's slayer strength could be affected during pregnancy, or how Angel's vampiric nature plays into the situation, like his concerns about his dark side influencing the child.
One interesting story could be where Buffy and Angel have to face the challenges of her pregnancy while also dealing with the supernatural threats. Maybe they seek help from old friends like Giles to figure out how to keep the baby safe from all the evils that lurk in their world.
Well, it could cause a huge rift. Angel might feel betrayed if he finds out later. He has his own moral code and the news could shock him. This could lead to a lot of anger and confusion between them.
In many fanfictions, Buffy starts to see the world differently. She's no longer just the slayer fighting the forces of evil. She's about to be a mother. This makes her more empathetic towards others, especially those who are vulnerable. She might also become more politically involved in the supernatural community, trying to make it a safer place for her unborn child. She could start advocating for better protection of innocents and forging new alliances, all while dealing with the physical and emotional changes of pregnancy.
Searching for 'angel and buffy pregnant fanfiction' requires some exploration. You could start by using relevant keywords in search engines dedicated to fanfiction. However, keep in mind that the quality of such fanfics can vary greatly. Some might be really well - written, exploring the complex relationship between Angel and Buffy in the context of a pregnancy, while others might not be as good. It's also important to respect the boundaries and rules of the fanfiction platforms you use.
The relationship between Buffy and her mother could also be a big part of the story. Her mother might be both excited and worried. She could try to convince Buffy to give up the slayer life, which would cause conflict between them. And as for Angel's relationship with his sire or other vampires he has a history with, they might see the pregnancy as a sign of weakness or a way to manipulate him, making his relationships with them more complex as he tries to protect his family - to - be.
Fanfiction.net is another place to look. It has been around for a long time and has a significant number of Buffy the Vampire Slayer fanfictions. However, the search function might not be as refined as AO3. But if you're patient and search through different categories related to Buffy and Angel, you might find some great stories about Buffy's pregnancy.