The couple, who were married in 2014, are expecting their first child together.
“Breaking news! It’s #ClearblueConfirmed! There is going to be a new cool kid in town…and by cool I mean dorky just like their father,” Carlos wrote on his Instagram account. “A little PenaVega is on the way!!! #ItsHappening #HolyWow #Imgoingtobeadaddy #clearbluepartner.”
Alexa added, “I cannot believe I finally get to say this… WE’RE PREGNANT!!! ???????????? It’s #ClearblueConfirmed that a little blessing is joining the PenaVega family!!! We can’t wait!!! #ItsHappening #HolyWow #LosForDaddyOfTheYear #ClearbluePartner.”