The sixth and final season of HBO show Girls is currently filming in New York City, and photos taken of the cast at work have potentially revealed a huge spoiler for the upcoming season.

Lena Dunham, who plays Hannah, has been spotted wearing denim overalls and a huge baby bump, indicating that her character may be expecting and that her pregnancy could be a key storyline on the show. It would certainly bring the character full circle, from a young woman trying to figure out her own life in season 1, to a mother having to looking after a child of her own.

Other possible theories are that the photos are an attempt to pass off a fake plot line to the media, or maybe even a flash forward.

As for the baby's father, Dunham has been spotted filming scenes with Adam Driver, who plays Hannah's ex-boyfriend Adam. The two were photographed kissing, so maybe a reunion is on the cards?

We'll all find out when Girls returns in 2017.