AU

It was supposed to be a one-night stand. Y/N has hated Draco Malfoy since Hogwarts, when the Ravenclaw and Slytherin spent seven years fighting for the top of their class. Years later, nothing has changed. They still work at the Ministry. They still argue. They still can't stand each other. Then Y/N gets dumped. Hard. One drunken night, one terrible decision, and Draco Malfoy ends up in her bed. They agree it was a mistake. It will never happen again. A week later, Draco knocks on her door. Apparently, the ancient Malfoy family tree has something to say about that. Because it has registered a new descendant. And Draco Malfoy is going to be a father. To her child. Now two people who have spent their entire lives trying to outdo each other have to navigate an unexpected pregnancy, their complicated history, and the increasingly inconvenient realization that maybe they don't hate each other quite as much as they thought.