Carrie Underwood, her son Isaiah, husband Mike Fisher and their two dogs all dressed in matching pajamas for one adorable Christmas photo.

Fisher holds their 3-year-old son in one arm and dog Penny in the other while the singer holds their other dog, Ace, with her second arm propped on her baby bump. Underwood has been fairly generous with pictures on her own Instagram, but this photo of the family all wearing versions of the same onesie best gives fans an idea of how far along she is. She's not shared the due date for her second baby — a second boy — but is expected to deliver in the coming weeks.

"Merry Christmas," Fisher writes on Christmas (Dec. 25). "The best day of the year calls for family onesies!! Happy birthday Jesus!!"

On Christmas Day, Underwood shared her own photo and well-wishes on her own Instagram page. The onesie was removed for that photo, as one sees her and Fisher lounging on the couch with Isaiah resting comfortably.

"I’m thanking the Lord tonight for His Son while I cuddle with mine. Watching Christmas movies with him while he uses my big belly as a pillow," she writes before wishing fans a Merry Christmas.

It's a season of rest for Underwood after a busy 2018 that included some very difficult personal moments and quite a few professional highs. In September she released her new Cry Pretty album, and she has announced a major tour in 2019. The 2018 CMA Female Vocalist of the Year played just a few shows this year, but will begin again in May, after her baby is born.

Relive Carrie Underwood's Best Baby Bump Pictures: