Lindsay Arnold is officially a boy mom following the arrival of her and husband Sam Cusick’s third baby.
The Dancing With the Stars alum, 32, announced the birth of the couple’s son on Thursday, June 11.
“Baby boy is here and we are so grateful and so in love 🥹💙 #babyboy #birth #csection,” she captioned a series of Instagram photos from the hospital of Arnold and Cusick with their newest bundle of joy.
Emma Slater was among the first to celebrate the happy news, writing in the comments section, “He’s here!!!! CONGRATULATIONS you guys!! So happy for you! 🥹.”
Arnold and Cusick — who have been married since June 2015 — are already parents of daughters Sage and June, whom they welcomed in November 2020 and May 2023, respectively.
In November 2025, the pair revealed they were expecting their third baby.
“BABY CUSICK #3 IS ON THE WAY ✨✨ We could not feel more blessed, grateful and excited 🫶🏻,” she wrote via Instagram at the time. “We love you so much already baby and we can’t wait to meet you!! 🥹.”
The accompanying photos showed the family of four holding sonogram images as they posed together outside.
Later that month, Arnold opened up about her health amid her third pregnancy.
“Things have been awesome, but it’s been interesting,” she said in a TikTok video at the time. “With both Sage and June’s pregnancies, I had what’s called a subchorionic hematoma, where essentially you have a blood clot in your uterus.”
She added, “It will release during those first couple weeks [and] months of pregnancy, and you bleed a lot. It’s scary because you’re just bleeding in early pregnancy.”
Despite dealing with the issue on two separate occasions in the past, Arnold acknowledged her anxieties over developing another hematoma were her “only hiccups in the road” thus far.
“Like I said, it’s something that I’m used to because it happened before,” she insisted. “Both times everything was OK [and] basically I just had to pass that blood clot, and then everything was good.”
As for how she felt overall during the pregnancy, Arnold noted she was not “100 percent” but also not “miserable.”
“I think the biggest symptom is that I get tired in the afternoons,” she explained. “I’m really trying to stay strong and keeping up with my morning workouts and get into that session. For me, mentally, it’s just the best thing ever.”
The following month, Arnold announced that she was expecting her and Cusick’s first son.
“We feel so beyond grateful and blessed to be bringing our first boy into this world,” she wrote via Instagram in December 2025. “Our girls cannot wait and ask every day how much longer until baby brother is here.”
Arnold also shared Cusick’s reaction to the news at the time.
“We opened our results together and in private, but I wish y’all could have heard/seen Sam’s excited ‘YESS!!!!!!’ when I read boy to him,” she continued. “He is the best girl dad and I just know he is going to be the most amazing boy dad. Our son is so lucky.”
