Mixon and Greer, an Olympic javelin thrower and former American Gladiators star, have been together for five years. During her appearance on Access Hollywood Live on Wednesday, the 36-year-old actress revealed that she's expecting a daughter.
"I am pregnant with our second baby! And it is a baby girl,” she shared. "[I] couldn't be more shocked. [I] didn't know it was possible. But me and my fiance, we are welcoming it, and she is due May 23."
While Mixon is expecting baby No. 2, she plays mom to three kids on American Housewife. See more in the video below.