Regarding Leah and Sam's pregnancy in fanfiction, it could bring out different themes. One theme could be about new beginnings. The baby represents a fresh start for them, a chance to create a family unit that might be different from what they had before. Another aspect could be the exploration of sacrifice. They might have to sacrifice certain aspects of their individual lives, like their freedom or personal goals, in order to focus on raising the child. And often, fanfictions use this situation to deepen the emotional connection between the two characters, making their relationship more multi - faceted.