TheDawsons Creekactorrevealed earlier in the seasonthat the couple were expecting baby No.
His family is regularly seen in the front row of the ballroom.
Before performing his second dance Monday, Van Der Beek spoke directly to the camera about his familys tragedy.

Justin Stephens/ABC
We lost the baby, he said.
You never know why these things happen, thats what Ive been telling my kids.
All you know it brings you closer together.
It breaks you open, it opens up your heart… it makes you more human.
Kimberly, I love you.
When tragedy strikes, it puts everything in perspective, judge Len Goodman said.
I dont know how you got through that just now, said judge Carrie Ann Inaba.
Check back later for the full recap from week 10 ofDancing With the Stars.