Hailey Bieber, the co-founder of Rhode and 29 years old, has shared her journey of being diagnosed with a uterine septum before conceiving her now 16-month-old son Jack Blues, whom she shares with her 32-year-old husband Justin Bieber.

Speaking on the She MD podcast, Hailey recounted how Dr. Thais Aliabadi had advised caution before she became pregnant.

She explained, "I had a septum in my uterus, and Dr. A kept saying, 'Well, we need to look at this and keep an eye on it before you get pregnant because it could potentially be an issue. I might have to give you a small surgery for it. Not sure.'

"And I was like, 'Okay. Well, I'm not thinking about getting pregnant right now, so we'll just cross that bridge when we get there.' And then I magically got pregnant."

Dr. Aliabadi admitted that her initial reaction was one of alarm. The expert shared, "She calls me, and she's like, 'I'm pregnant!' And I'm like, 'No!'"

The doctor explained that a uterine septum, which affects between one and three percent of women, is a genetic condition where a thin wall forms inside the uterine cavity. Hailey's condition was assessed as moderate, carrying a 25 to 40 percent risk of miscarriage and a 10 to 20 percent risk of preterm delivery.

Hailey reflected, "We realized as the baby was growing, the septum was expanding. Everything was opening and doing what it needed to do, luckily."

The model also shared that she had prepared herself for early labor.

She said, "I was convinced I was going to go into labor early because of my mom's history. But my body had its own plan."

Meanwhile, Dr. Aliabadi conducted the PreTRM Test, an advanced blood test analyzing placental proteins to estimate the delivery risk, which showed a low-risk result for Hailey.