lauren akins

Rhett's three daughters have since come around to the idea of a baby sister -- but maybe they'll still get a baby brother one day.

Anyone with kids can relate to this.

Thomas Rhett shared the news onstage in Texas ... and he also shared the sex of the new baby.

Check out some behind-the-scenes photos before the show airs on Nov. 30.

It's an almost unbelievable rustic retreat.

There was one particular moment when they knew things had to change.

There is nothing a little water and sunshine can't fix. Just ask Rhett, his wife Lauren...and Luke Bryan, who lent them his boat for some much-needed couple time.

Lauren Akins is expecting the couple's third child soon, and she shared pictures of a fun "babymoon" he arranged for her and her best gal pal.

He says they "give enough" of themselves already on social media.

The baby girl is expected in 2020.

Ryan Lochte protested on DWTS, Miranda Lambert cancels the rest of her tour and more in today's Entertainment this Morning!