Lindsay Arnold Shows Off Her Growing Baby Bump and Abs at 23 Weeks Pregnant

Lindsay Arnold is staying fit while pregnant with her third baby.

Arnold, 32, took to Instagram on Thursday, February 19, to show off her growing baby bump. In the pic, she rocked a cherry red sports bra, which she teamed with mid-rise spandex. She flexed her arm muscles and put her abs on display.

“23 weeks pregnant and truly so grateful to be moving my body!” she captioned the post. “Sticking to my @themovementclub morning routine throughout pregnancy has been a game changer for me!”

Arnold previously announced that she was expecting her third baby, a boy, with husband Sam Cusick, in November 2025.

“BABY CUSICK #3 IS ON THE WAY✨✨, she captioned a family photo of herself posing with Cusick, 31, and their two daughters, Sage, 5, and June, 2. The Dancing With the Stars pro held a photo of her sonogram up.

“We could not feel more blessed, grateful, and excited🫶🏻 we love you so much already, baby and we can’t wait to meet you!! 🥹,” she added.

The following month, Arnold opened up about how she felt ahead of welcoming her first boy via TikTok. “I still honestly kind of can’t believe it,” she shared. “We currently have two girls and I grew up in a family of all girls. I’m the oldest of four girls so girls are very relevant in my life,” she explained, noting that she has 10 nephews.

“There definitely are a lot of boys on my side and on Sam’s side,” Arnold laughed. She went on to say that “before having kids,” she was “convinced” she would be a boy mom because Cusick has mostly boys on his side of the family. “Since the gender is determined by the male sperm, I was just convinced that we were only gonna have boys.”

After having two girls, Arnold thought there was “no chance” she was going to have a son. “It felt like it was just not going to be a thing for us. If I had to guess, I thought it was going to be a girl.”

She shared that she got a blood test to determine the sex and felt like there was “pressure on this one” because it is “most likely [their] last baby.”

“Of course, we would love to experience what having a boy is like,” Arnold said. “Sam would love to have a son.

She described the feeling of finding out they’re having a boy as a “fun and cool moment.” She added, “Sam was stoked. We were both shocked. I literally cannot wait.” 
Arnold also opened up about feeling “nervous” to be a boy mom because her “whole life has been so girl-heavy.”

“I’ve now been a girl mom for over five years and it just feels very much like the norm,” she explained. “I wanna step into this boy mom role and be the perfect boy mom, and I just don’t have any experience. It does feel like I’m going into the unknown.”

She added, “Our life will be very, very different.” Arnold went on to explain that she has to “start over” with getting new car seats because her older ones expired, buying baby boy clothes and more.

“I don’t think I have many gender neutral clothing items, so we’re definitely gonna need to go shopping for [our] baby boy, which is so exciting to me,” Arnold gushed.

She concluded her video by saying her daughters are “so excited to be getting a brother.”

“We truly cannot wait 😭🫶🏻,” she captioned the post.