Jana Kramer and her husband, Mike Caussin, have announced that they are expecting their second child.

The actor and country singer turned to social media to reveal the joyous news on Monday morning (June 25), posting the photo below to Instagram. In the photo, she and Caussin pose with their 2-year-old daughter, Jolie, in front of an adorable placard that reads, "Only child expiring November 2018."

"Surprise! We have a rainbow baby on the way & couldn’t be more excited! Jolie is going to be a big sister & we’re becoming a family of 4!" Kramer writes to accompany the picture. She goes on to credit several people and medications for helping her through her pregnancy struggle.

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The news comes just six months after Kramer revealed she had suffered a miscarriage in December 2017. She expanded on that after revealing that she's pregnant, telling People, “I’m so excited" about the child she and Caussin are now expecting. "We lost in October and then we did an IVF cycle and we lost in February, so I want to be able to be like, ‘Hey, I know it’s hard but just try to have some hope."

People reports that Kramer has suffered five total miscarriages, including two chemical losses.

Kramer and Caussin married in 2015 and welcomed their daughter, Jolie Rae Caussin, in January of 2016. They separated later that year after reports surfaced of Caussin's infidelity, but they worked through their problems, and in December 2017, they renewed their vows in Hawaii.

That same month, she told People, "I definitely want to expand the family ... It’s just in God’s timing. [I] had kind of a rocky road with that."

Kramer and Caussin have not revealed the sex of their second child.

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