*The bun in Kim Zolciak’s oven is no more.

“The Real Housewives of Atlanta” star has given birth to a baby boy

The reality star and her fiancé, Kroy Biermann, who plays for the Atlanta Falcons, used Twitter to herald the birth of their son on Tuesday.

“@biermann71 and I are happy to announce the birth of our son today Kroy Jagger Biermann is healthy & beautiful,” Kim Tweeted, adding, “We are so in love!”

And baby daddy Biermann also Tweeted his feelings about the blessed event:

“Thank you everyone for all of your well wishes!! KJ is doing so well along with momma @Kimzolciak Thank you God!!!”

Zolciak already has two daughters, Brielle, 13, and Ariana, 9, from a previous relationship.

The couple, who plan to wed in January, met in August 2010.