updated 10/03/2013 AT 12:00 PM ET
•originally published 10/03/2013 AT 4:15 PM ET
The Somerhalder family is getting even bigger!
A little more than a month since The Vampire Diaries’s Ian Somerhalder brought home rescue dog Nietzsche, he took to Instagram on Wednesday to announce that his “new girl” is pregnant and due any day now.
“Preparing for the launch of a whole part of life – being a GRANDFATHER,” he wrote. “I’ve got my hand on a belly with 8 little ones about to explode out into the world.”
It’ll be a busy few days for the star, whose CW series also begins its fifth season on Thursday. But the actor’s staying focused on his responsibilities as a pup parent, praising his furry mom-to-be as a “trooper” and wondering out loud about how these new additions will alter his life.
“2 cats 9 dogs – is that considered a hoarder???” he added.