Katherine Webb gave birth less than one month ago, and already, she's determined to get her body back to size.

In a couple of Instagram posts, Webb, the wife of Cincinnati Bengals quarterback AJ McCarron, showed off her post-baby body, revealing that she was down 20 pounds just nine days after her first child arrived.

"Down 20, 24 more to go. Although, I am loving these extra curves #9dayspostpartum," Webb wrote along with the first photo, shared two weeks ago.

Yesterday, the new mom shared a second photo, revealing that she hasn't yet been to the gym but was at least dressing the part.

"Finally getting out with bubs. Haven't started back at the gym yet bc I feel guilty leaving him! But at least gym clothes make me feel like I'm doing something," she wrote with the pic below on Thursday.

Following their son's May 24 birth, McCarron shared a message on social media, giving details about their baby boy.

“Thank you all for the well wishes for our family. Katherine and I are so thankful for this beautiful baby boy," McCarron wrote to fans on May 27. "We appreciate all the kind messages set to us —thank you. Tripp arrived Tuesday night and was 8.1 and 21.5” long. His full name is Raymond Anthony McCarron, III. He has huge hands and feet already. LOL Feet so big they wouldn’t fit on his stickers."

"Mom and Baby are doing great! We are truly blessed. Thank you all again for the well wishes and kind comments. We are very blessed to say the least," he added.

Since gaining fame as McCarron's partner during a college football game years ago, Webb has been quite active on social media. In fact, she made her pregnancy announcement on Instagram.

"AJ and I feel beyond blessed and grateful to FINALLY announce after 4 months we have been keeping a secret!" she wrote. "We are having a BOY! Thank you all so much for your prayers for us as it hasn't been an easy journey. We thank God everyday for this wonderful blessing and can't wait to share this journey with all of you!!"

To see little Tripp in action, check out the video below.