Pregnant Leah Jenner celebrated Mother's Day with mother-in-law Linda Thompson, husband Brandon Jenner, and brother-in-law Brody Jenner. Credit: Courtesy of Brandon Jenner/Instagram

Pregnancy sure looks good on Leah Jenner! Bruce Jenner's daughter-in-law is anxiously awaiting the arrival of her first child later this year, but that didn't stop her husband, Brandon Jenner, from showering her with affection on Sunday's Mother's Day.

Celebrating May 10's holiday with his own mom, Linda Thompson, the dad-to-be commemorated the special day with a sweet Instagram photograph of he and his wife, along with brother Brody Jenner and their mom. "Three generations — well, one in the belly,” he wrote.

Glowing in a blue wrap dress, pregnant Leah, 32, also reflected in her own way on Instagram. “I can’t wait to meet this little person. Already feel like a mama,” the daughter of Eagles guitarist Don Felder captioned her latest baby bump photo.

The couple, who performs in the pop group Brandon & Leah, announced their pregnancy in March 2015, three years after they wed. “I could get used to this pregnancy thing,” the expectant mom wrote on Instagram, where she keeps fans updated on her journey to parenthood with lots of photos. “Feeling grateful for this life.”