The singer confirmed her rumored pregnancy in an Instagram message on August 8.
Country superstar Carrie Underwood announced she and husband Mike Fisher are expecting another bundle of joy.
With a close up shot to announce the tour, in a second video Carrie then zooms out to reveal the word baby in helium balloons over her head to make the announcement.
Carrie Underwood says her family is adding "another fish to our pond".
The seven-time Grammy Award victor will release a new album, "Cry Pretty", on September 14. "This has just been a dream come true with the album and baby news".
Underwood and Fisher welcomed their first child, Isaiah, in February of 2015. The couple celebrated eight years of marriage last month.
The American Idol victor recently discussed the possibility of expanding her family in an interview with Redbook.
'We always talk about adoption and about doing it when our child or children are a little older'.
"A lot happened in 2017 during my 'off year, '" Underwood told the latest issue of the mag. "When you go into write you're drawing off of personal experiences and you're talking about people that you know or friends that are dealing with things".