Well, in some fanfictions of this kind, there might be a plot where the pregnancy is a result of a magical accident. This could lead to a whole series of events where they have to figure out how to reverse it, but in the process, they start to develop deeper feelings for each other. And also, perhaps there's a plot where they are in a secret relationship and the pregnancy forces them to come out into the open.
In this type of fanfiction, a common plot could be that the pregnancy reveals hidden aspects of their personalities. For example, Lily might show a more vulnerable side, and Severus could display a protective nature he didn't know he had. The story could also revolve around their efforts to balance their individual lives, such as Severus's work in potions or Lily's friendships, with the new reality of impending parenthood. There could be conflicts with other characters who have different views on their relationship, which adds more drama to the story.
One possible plot could be the challenges they face in their relationship due to the unexpected pregnancy. Maybe they have to deal with the reactions of their friends and family. Another plot could involve how they prepare for the arrival of the baby, like Severus trying to be more responsible and Lily dealing with her own fears and hopes.
A possible plot is that Severus discovers a new potion that can enhance the magical abilities of the unborn child. Minerva is hesitant at first, but Severus convinces her to let him try it on a small scale. Meanwhile, they have to navigate the challenges of Minerva still teaching her classes and Severus doing his potions work. They also face some opposition from certain members of the wizarding community who think their relationship is inappropriate. But they stand strong together and look forward to the arrival of their baby.
The main characters are clearly Lily and Severus. Lily is often portrayed as a kind - hearted and strong - willed character. Severus, on the other hand, is usually depicted as complex, with his own insecurities and hidden depths.
One plot idea could be that Severus and Lily, after getting married, have to deal with the secrets Severus has from his Death Eater past. Another could be them raising Harry together, but facing opposition from the wizarding world due to Severus' former associations. A third idea might be that they discover a new magical threat and use their combined knowledge to fight it, all while strengthening their relationship.
One interesting fanfiction could be where Lily and Severus reconcile in an alternate universe after her death. In this story, Lily's spirit somehow manages to communicate with Severus more directly. It shows a different side of their relationship, exploring the deep-rooted connection they had before everything went wrong.
There's a fanfiction where Severus and Lily get married in a world where the wizarding war took a different turn. It delves deep into how they deal with the post - war situation as a married couple. Their marriage is not just about love but also about rebuilding the wizarding world together. They face challenges from the remaining Death Eaters and also from those who don't believe in their union.
Well, one interesting plot could be Harry seeing Severus in a new light. He realizes that Severus was actually a complex and misunderstood character. So, he decides to adopt him to give him a new start in life. Another plot might involve Severus initially being resistant to the idea of being adopted by Harry, but over time, he warms up to the concept as he sees Harry's genuine kindness.
One possible plot could be Severus, as a girl, having to navigate the same social and magical challenges in Hogwarts but with a different perspective. For example, how she deals with the Marauders might change as a girl. She might use her intelligence in new ways to outwit them, or form different relationships with female students who previously saw her as a rival.
One interesting plot could be Severus having to deal with Harry's fame at Hogwarts while trying to keep their new family relationship a secret. It adds a layer of mystery and tension.
In some fanfictions, Lily confronts Snape when she realizes he has feelings for her that are deeper than just friendship. She might be uncomfortable with this discovery as she sees him more as a friend. So she confronts him to set boundaries. Snape, on the other hand, is heartbroken and this confrontation could change the whole dynamic of their relationship in the fan - created story.
There could be a fanfiction where Severus Snape is pregnant as a result of a dark magic spell that was meant for someone else. In this story, he has to deal with the physical and emotional turmoil of being pregnant. He might struggle with the idea of how the wizarding world will react, especially considering his reputation. He could also have to rely on some unlikely allies to help him through this difficult time.