I'm not entirely sure specifically about 'nagisa no visual novel' without more context. It could potentially be a visual novel centered around a character named Nagisa. Visual novels often have storylines involving relationships, personal growth, and various adventures.
In the 'Assassination Classroom' series, Nagisa is male. In fanfics, while some might play with the concept in creative ways like gender - bender scenarios for the sake of unique storylines, traditionally Nagisa is a male character.
One popular theme could be the journey of Nagisa through pregnancy, like dealing with the physical and emotional changes. Another might be the reactions of the people around her, such as her friends and family. Also, there could be themes related to preparing for the new life, like setting up a nursery or choosing a name.
Well, when writing Nagisa pregnant fanfiction, start with a strong concept. It could be something like Nagisa discovers she's pregnant in an unexpected way. Then, build the story around her daily life during pregnancy. Describe her routine, her doctor visits, and her cravings. Make the characters in the story feel real by giving them their own personalities and motives. And always keep the story engaging by adding some drama or conflict, like a problem with the pregnancy or a disagreement with her partner.
Love and affection are key. Their relationship is centered around how they care for each other. For example, in many fanfics, Tomoya's protective nature towards Nagisa is highlighted.
I'm not sure where you can specifically find 'nagisa no visual novel'. You could try searching on well - known digital game platforms like Steam or GOG. Sometimes, visual novels are also available on the official websites of the developers or publishers.
Well, instead of directly naming specific nagisa x reader lemon fanfictions (as I may not be familiar with all of them), I can tell you that when looking for such fanfictions, you should also pay attention to the tags and ratings. Some might be more appropriate for your taste in terms of the relationship development and the overall tone of the story. Also, reading reviews from other readers can give you an idea of whether a particular fanfiction is worth your time.