Cardi B shares inside look at her gym routine 8 days after giving birth to baby No. 3

She runs this s–t like cardio.

Cardi B was back in her gym routine just eight days after welcoming her third baby with estranged husband Offset.

In an Instagram Story Sunday night, the rapper, 31, joked she was “dying” as she did a 30-minute exercise on a StairMaster.

“Since I’m off tonight I’m doing a late night gym session,” Cardi captioned the video.

Cardi B took to Instagram Stories Sunday to show off her postpartum fitness routine. Cardi B/Instagram “No heavy lifting, no weight,” she explained in the caption. “Just straight stair master until next week and I start with @fitking_plem.” Cardi B/Instagram The “WAP” hitmaker revealed she spent 30 minutes on the StairMaster during her workout. Cardi B/Instagram

The proud mom emphasized that she was only doing cardio for the evening due to being less than 2 weeks postpartum.

“No heavy lifting, no weight just straight stair master until next week.” she wrote, adding that she would be starting with a trainer soon.

Despite breaking a sweat so close to her baby girl’s arrival, the Grammy winner assured her fans that this is not her first rodeo.

The grueling workout routine took place eight days after Cardi gave birth to her third child. Cardi B/TikTok The rapper announced the arrival of her and Offset’s third child on Sept. 13. Instagram/@iamcardib

“Remember ladies this is my third baby,” Cardi — who welcomed daughter Kulture in 2018 and son Wave in 2021 — wrote on the clip. “With my other 2 babies I was still on bedrest on my first week postpartum.”

Cardi added a second video to her Instagram Stories detailing that she climbed 80 floors and burned over 240 calories.

“Big thirty minutes on the stair master. . . ITS PERSONAL!!!!” the “WAP” rapper wrote. “Do you know you got 30 minutes?YAAAAASSSS [sic] THIRTY THIRTY.”

Offset was pictured with their baby girl at the hospital. Instagram/@iamcardib Cardi and Offset previously welcomed their daughter Kulture (left) in 2018 and their son, Wave, in 2021. Instagram/@iamcardib

Cardi announced the arrival of her newborn daughter on Sept. 13.

“The prettiest lil thing 9/7/24,” Cardi captioned the carousel of photos from the hospital, along with a series of pink heart emojis.

Offset, who Cardi filed for divorce from this summer, was pictured in the series of hospital snaps alongside their two other children.

Kulture was pictured holding her baby sister alongside the family at the hospital. Instagram/@iamcardib The mother of three filed for divorce from Offset in August. GC Images

She also took to TikTok Sunday to share a more intimate look at the baby’s arrival with a video from the hospital.

“Babygirl,” Cardi captioned the post, along with several pink flower emojis. In the clips, the musician was pictured holding her newest addition just moments after she was born.

Cardi and Offset have yet to reveal their newborn’s name.