Yes, it's possible. You could search on fanfiction platforms that have strict content guidelines to filter out any adult - themed or inappropriate stories. There could be ones where the pregnancy is part of a plot about new beginnings, growth, and family for Shiho Miyano.
They have a complex and evolving relationship. At first, they are just acquaintances, but as the story progresses, they grow closer and develop deeper feelings for each other.
The light novel is unique in its character development. Sasaki is initially seen as a bit of a playboy but as the story progresses, his deeper, more sincere side is revealed. Miyano, on the other hand, is shy and reserved about his own feelings, and his growth throughout the story is engaging. It also has a unique art style in its illustrations which add to the overall charm of the story.