In "The Cider House Rules" by John Irving, the theme of reproduction plays a significant role in the characters' relationships. The concern of unintended pregnancy influences the way the couple interacts, leading them to approach intimacy with caution. This careful management of their physical connection reflects societal expectations and pressures from history.

The narrative suggests that the weight of these external expectations, particularly the judgment of New England's early settlers, shapes their experiences. The couple's decisions are rooted in the desire to navigate their desires without the complications that unplanned parenthood brings, ultimately highlighting the complexities of love and responsibility.