Gillian Anderson is pregnant with a human baby!

The truth is out there..........
People:

X-Files star Gillian Anderson is expecting her second child with boyfriend Mark Griffiths, PEOPLE has learned exclusively. The couple have a son, Oscar, who was born in November 2006. Anderson also has a 13-year-old daughter, Piper, from a previous marriage. Next up, Anderson will reprise her role as Dana Scully in The X-Files: I Want to Believe, a new movie due out July 25.