One common plot is the dad learning about the wizarding world. He might initially be skeptical or shocked, but as he discovers more, he becomes more accepting. For instance, he could accidentally stumble upon Hermione's magic spells at home and then she has to explain everything to him.
Often, there are plots where Hermione is a Death Eater as part of a deal to save her friends. Maybe she makes a pact with a powerful Death Eater to spare Harry and Ron in exchange for her loyalty. There are also stories where she becomes a Death Eater due to a family secret or connection that ties her to the dark side. This then leads to a journey of self - discovery as she tries to reconcile her new identity with her old values.
One common plot is that she might be a double agent. Pretending to be a Death Eater to get inside information for the good side. For example, she could be using her intelligence to outwit Voldemort and his followers from within. Another plot could be that she was brainwashed as a child by a hidden Death Eater and only discovers her true identity later. It's a dark and twisted take on her character.
A common plot is that they are sneaking into the manor to steal something important, like a magical artifact. Ron would be on the lookout for any danger while Hermione figures out how to bypass the manor's defenses.
Often, there are plots where there is some sort of magical interference causing Hermione's labor complications. For example, a dark magic spell was cast on her. Draco, who has some knowledge of the dark arts, tries to reverse it. In some stories, the labor complications are a result of a prophecy that involves both of them. The two of them then have to figure out how to break the cycle and save Hermione and the baby.
Such a fanfiction is highly inappropriate and offensive. It goes against the values and nature of the original story and is disrespectful to the characters.
A common plot is Snape trying to protect a werewolf from being hunted by other wizards. He might use his potions - making skills to create something that can hide the werewolf's scent or control their transformation. This shows his more compassionate side that we don't always see in the original books.
One common plot is the shock and adjustment. Both Hermione and Cedric are usually shocked when they find out about the pregnancy. They then have to adjust their lives, like Hermione might have to take a break from her studies at Hogwarts. For example, in some stories, she has to figure out how to keep up with her classes while dealing with the physical and emotional changes of pregnancy.
One common plot is the mystery of the father. In many such fanfictions, the identity of the baby's father is not immediately clear. This adds an element of suspense and intrigue. For instance, it could be a character who has been secretly in love with Hermione or someone she had a one - time encounter with.
Often, there could be a plot where Hermione plays poker to win something important. It could be a magical item, or a favor from someone powerful. And she has to use all her skills, both magical and non - magical, to succeed in the game.
One common plot is Snape trying to protect Hermione secretly. Another is them having deep, intellectual conversations that gradually lead to romantic feelings.