Sister-in-law support! Isabel Sofia Rock shared a sweet thank you to Audrey Roloff, in a since-deleted Instagram post, for helping her through her first pregnancy.

“So this is it. The final days for you and me only four weeks behind,” Isabel captioned a photo of the two holding their baby bumps. “Thank you, Audrey for answering my MANY questions regarding pregnancy. Never turning me down, always giving me your heart. Can’t wait for these two to be buds. You give birth soon, and then it’s my turn. Love you.”

The countdown is on for the sisters-in-law. Audrey, 30, who is expecting her third child with Little People, Big World alum Jeremy Roloff is due in November, while Isabel, 25, and Jacob Roloff is expecting their first child, a son, in December. 

Both expecting moms have been excitedly sharing their experiences with fans on social media. Audrey, who shares Ember, 4, and Bode, 21 months, with Jeremy, 31, has shared photos of her baby bump as well as her concerns over welcoming their third, specifically her fear of Symphysis Pubis Dysfunction (SPD). SPD is a painful condition that causes your pelvic joints to become stiff or move unevenly. The condition is not harmful to the baby, but the condition could be incredibly painful to the mother.

isabel baby shower
Isabel Sofia Rock/Instagram

“To me baby feels very low also my symphysis pubis dysfunction that came on with Bode around 8 months started much earlier with this babe,” Audrey shared on her Instagram Stories on September 28. “[Thankfully] I’ve been able to manage it with being more proactive this pregnancy … hoping it stays manageable during these final weeks and it’s not horrible postpartum.”

Isabel has also been sharing her and Jacob’s journey into parenthood. Jacob, 24, announced the couple are expecting via Instagram in July. 

“Not for you but us: I’m very happy to say … We’re having a son,” the former LPBW star wrote at the time.

On top of sharing photos of her adorable baby bump, Isabel has been candid about how she feels welcoming a child into the world after losing her mother, Toni Garreton, in 2014. 

“That was the hardest year of my life,” Isabel wrote on October 26 in a since-deleted post. “When life felt overwhelming, I’d just drive with the music blasting, dog in the passenger seat, and a familiar backroad. My mom had just passed almost nine months prior, and I was gearing up to experience the holidays without her for the first time.”

The artist explained how her heart “was aching in a way you can’t describe to someone who hasn’t felt it,” and it shaped the woman she is today. 

“Fast forward to today, I am now gearing up to experience the holidays with a new little family member,” she continued. “One I grew in my belly for almost nine months now. I found myself driving the same backroad, probably for familiarity and comfort. And while driving, I noticed that this autumn feels different to me, more special obviously. Instead of letting go, I’m getting ready.”

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