Often, they show a very loving and supportive relationship. Harry is usually depicted as being extremely protective of Hermione during her pregnancy. For example, in many fanfictions, he will go out of his way to get her the things she craves or make sure she is comfortable at all times.
They also tend to show how their friends in the wizarding world interact with them during this time. Some fanfictions have Ron being a bit jealous at first but then coming around and being excited for them. Hermione's pregnancy is often used as a way to bring the community closer together, with everyone offering their help and advice.
Often, the baby is portrayed as having a combination of Ron and Hermione's traits. Smart like Hermione, with a bit of Ron's sense of humor. For example, in some fanfictions, the baby might be really good at solving puzzles (Hermione's trait) but also tell really cheesy jokes (Ron's trait).
In many of these fanfictions, their relationship is shown as a slow - burn. They start off as roommates with some bickering and teasing, like they did in school. But as time passes, they see each other in a new light. For example, Hermione might notice how Harry is always there for her when she has a bad day at work, and Harry might realize how much he enjoys her company during quiet evenings at home.
Often, Hermione is portrayed as conflicted. On one hand, she's dealing with the unexpected pregnancy, which is a huge life change. And on the other, it's with Draco, someone she used to despise. So she might be feeling a mix of confusion, fear, and a strange new - found affection. Draco, on the other hand, could be shown as initially shocked and then slowly accepting his role as a future father. He might be feeling a sense of responsibility he never had before.
In these fanfictions, Hermione is often portrayed as a strong - willed and intelligent character. Despite being claimed by the Lestrange brothers, she doesn't cower. For example, she might use her vast knowledge of magic to hold her ground against them. She could be shown as a fighter, using her wits to try and escape or gain the upper hand in the situation.
In many of these fanfictions, their relationship is portrayed as a sort of forbidden attraction. The act of Hermione stripping is a catalyst that breaks down some of the barriers between them. It can be seen as a way to explore the sexual tension that some writers believe exists beneath their constant bickering in the original Harry Potter series. It also allows for a deeper exploration of their individual insecurities and desires.
In these fanfictions, Hermione is often portrayed as still being her brilliant and somewhat controlling self. Since she's pregnant, she might use her intelligence to research everything about pregnancy in the wizarding world. For example, she could be looking for spells to ease morning sickness or ensure a healthy pregnancy for her and the baby.
Often, they portray a relationship that starts with animosity. Given their different backgrounds in the original series (Draco as a Slytherin and Hermione as a Gryffindor), there's initial conflict. But in fanfictions, this often turns into a slow - burning attraction. For example, in many, Draco's initially cold exterior begins to melt as he sees Hermione's intelligence and strength.
Often, they start off with a lot of tension. Draco's Slytherin pride and Hermione's Gryffindor determination clash. But as the story progresses in the shower - related setting, they start to see each other in a new light. Maybe they start to respect each other's intelligence.
Typically, Hermione is depicted as a catalyst for change in Draco's life. She is intelligent as always, but in these fanfictions, her intelligence is sometimes used to outwit Draco in their initial interactions. However, as the story progresses, she becomes more open - minded towards him. Her loyalty to her friends still remains a core part of her character, but she starts to question whether Draco could be an exception to the rule of 'Slytherins are bad'. She may be portrayed as having a more complex emotional side, especially when it comes to her growing relationship with Draco.
In these fanfictions, Hermione's character is usually shown as intelligent and resourceful. When she runs into Snape, she uses her wits. Say, if they are in a dangerous situation in a fan - made scenario, she quickly assesses the situation and tries to find solutions, sometimes even suggesting things that Snape hadn't thought of, which makes him view her in a new light.