Double trouble! After Robert Herjavec and Kym Johnson announced they are expecting twins, Dancing With The Stars fans are wondering if they're having two boys, two girls or a boy and a girl.

“We waited so long that we decided to double up!” the DWTS couple told People. “We are very grateful for the blessing of twins.”

The DWTS dancer, 41, announced her pregnancy on Instagram on Monday with a photo of a sonogram showing a thumbs-up sign. Kym will be a first-time mom, while Robert, 55, has three children from his first marriage.

Robert Herjavec's Adorable Baby Sonogram Robert and Kym posted this adorable sonogram photo to announce her pregnancy.

Robert and Kym, who were paired up as partners on Dancing With The Stars, walked down the aisle on July 31, 2016. “I’m just so happy to be going through life with Robert,” Kym told People previously. “He’s the most incredible person.”

He added: “I enjoy every minute I spend with Kym. When I met her, I felt complete.”

But it wasn't always clear that the couple would try to start a family quickly. When asked about babies back in October 2016, Robert said, “I think right now we’re struggling with getting the puppy to be house broken properly because Lola, which is Kym’s dog, it was just her and Lola for a long time and then I come into the picture ... We’re going through that adjustment phase where Lola and I are trying to figure out where the boundaries are.”

Robert And Kym Robert posted this sweet throwback with Kym to celebrate National Puppy Day.

Well, they've certainly found their boundaries. And they sound thrilled about the prospect of two kids instead of one.

What do you think Robert Herjavec and Kym Johnson should name the twins? Let us know your take in the comments section below!