Bachelor nation just keeps growing. Bachelorette alum Chris Lambton and his wife, Bachelor alum Peyton Lambton, are going to be parents!

“We are thrilled to finally expand our family, and we can’t wait for this new adventure to begin,” the mom-to-be tells Us Weekly of her pregnancy.

Peyton competed on Andy Baldwin’s season 10 of the Bachelor in 2007, while Chris was the runner-up on Ali Fedotowsky’s season 6 of the Bachelorette in 2010. The two were introduced at a charity event through mutual Bachelor pal Jesse Beck and tied the knot in 2012.

In May 2013, Peyton blogged about why she wasn’t ready to start trying to get pregnant. “Expanding our family will be a huge decision and we need to be ready to commit to the fact that our lifestyle will change,” she wrote. “I think everyone is aware of my only-child syndrome and I am still getting used to sharing a bed with another person! I’m learning to share and I’m still learning that I don’t always get my way. So with that said … I’m throwing any sort of planning out the window.”

She continued: “My grandmother had my father and his twin brother at age 45 so crazier things have happened. She was a saint … identical twin boys at 45. So, maybe I will follow in her footsteps … hopefully before I’m 45."

The Cape Cod–based couple — who just celebrated their four-year wedding anniversary — star in HGTV’s My New Old House, which premieres June 26. Chris, a landscaper, also hosts Yard Crashers on DIY network.

Their baby will join their Greater Swiss Mountain dog, Summitt.