The big bombshell came during the scene in which Kelly Severide (Taylor Kinney)

approaches his wife. The character has historically been reluctant to take the plunge

and become a father, but he completely changed his tune during the finale: ” I was

thinking that maybe, we start a family. I know at first, at least, it’s a bigger decision for you.”Kidd is completely taken aback by this, and says as much. “I wasn’t expecting that,” she admitted. Severide admits he hasn’t been as gung-ho about the idea in the past, but reveals that it’s been on his mind a lot lately. “I know,” he conceded. “Kinda flew out of my mouth but I’ve been thinking about it.” There’s been some online chatter about the possibility of Kidd already being pregnant, but Chicago Fire would not have let such a bombshell go without the fanfare of a big season finale reveal.

The way the two characters talked about it, and the way the writers have been subtly hinting towards the start of a Stellaride family suggests that parenthood is something we will get to see play out in season 13. The Stellaride family did get bigger during the finale, however. Jack Damon (Michael Bradway), the rookie who seemingly had a bizarre obsession with Severide, revealed that he’s the character’s half brother. It will completely shift the dynamic of the show moving forward, and truth be told, Damon’s timing couldn’t be better. It sounds like the Stellaride baby is going to have an uncle who also works at 51!