Vanessa and Nick Lachey are expecting their third child.

Alongside a photo of themselves and their children in front of their newly-acquired family home, the duo wrote: "Newest Lachey arriving Spring 2017."

Both Vanessa and Nick have previously spoken about the joys and the responsibility of being parents.

Vanessa explained back in May 2015: "When I introduced Camden to Brooklyn, I had my doctor give me some tips.

"I had Camden give a gift to Brooklyn - we laid out three stuffed animals, we said, 'Which one do you want to pick for Brooklyn?' He goes, 'That one, that one!' and so he picked the little giraffe."

Meanwhile, Nick admitted that although parenthood has taken some adjusting to, he has relished the challenge.

He said in 2013: "It's just all-encompassing. You would do anything for your children - not that you wouldn't for your wife or someone else you love, but there's a sense of protectiveness and responsibility that comes with your child which you don't feel in any other relationship.

"[Becoming a dad] has changed my life in every possible way."

Vanessa and Nick - who was married to pop star Jessica Simpson from 2002 until 2006 - tied the knot in 2011 and are currently preparing to move into their new family home.