Can't Fight The Moonlight (слэш)

"How is it possible that neither of you thought to pay attention to the moon cycle?"
"It was cloudy," Harry said. "And we were drunk. We were very, very drunk."
"This just gets better," Hermione said. "How could you have been so stupid?"
"In my defence," Harry said, "I had no idea that I should have been paying attention to the moon cycle. I'm not going to lie, I didn't even know men could get pregnant. It's been like, one long life lesson all round."
Or: the one where Harry accidentally gets Draco pregnant, both of them fail to talk about their feelings, and in the end, there's a baby.