Happy (Belated) Bday, Heidi! How Mrs. Pratt Rang In The Big 2-3

Last year, a tiara-clad Heidi Pratt (then Montag) celebrated her 22nd birthday by sippin' on champagne, sucking face with Spencer and posing next to a gigundo frosted layer cake. But these days, Spencer's little lady's more interested in baby bottles than flutes of Cristal. And since Heidi's hubby's still not ready for the pitter-patter (pitter-pratter??) of little feet, he decided to give her the next best thing: an adorable nine-week old puppy!

"Spencer gave me the best gift ever, a maltipoo puppy that we have named Dolly," the birthday girl gushed to People.com yesterday, adding that the pooch (a white dog, with black ears) is named in honor of country star Dolly Parton.

"I'm so excited [it's] my birthday," the Hills star went on. "Thank you, God, for every moment you have given me and blessing me with my wonderful husband."

Meanwhile, Spencer -- who thanked God as well as Heidi's mom, Darlene Egelhoff, for bringing his "earth angel" into this world -- had plenty of syrupy sweet Twitter praise for his beloved.

"HAPPY BIRTHDAY @HEIDIMONTAG!!!!" he wrote yesterday. "I LOVE YOU WITH EVERY CELL IN MY BODY!!!! THANK YOU GOD FOR MAKING HEIDI TODAY 23 years ago!!!"