Fans are convinced Jacob Roloff secretly married fiancée Isabel Rock! The Little People, Big World star's mom, Amy Roloff, recently posted a photo with Isabel on Instagram — hinting she was officially a part of the family.

"So wonderful I got to hang out at Bushwackers, getting our country on, w/ my beautiful DIL’s and soon to be celebrating Isabel’s birthday," she captioned the photo that also featured Aubrey and Tori Roloff. "I'm so blessed by my sons' wives." Watch the video above to see the photo of Amy and her "daughters-in-law"

As expected, follower quickly flooded the comments section with questions on Jacob and Isabel's relationship status. "Did I miss something @amyjroloff? Did Jacob get married? I haven’t been on IG lately," one fan asked before another added, "Did Jacob get married? If so, congratulations!"

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Another Christmas season with this lady ❤️

A post shared by Jacob Roloff (@jacobroloff45) on

However, on fan responded to the rumors, pointing out, "Jacob and Izzy are engaged. Amy said DIL and "soon to be" in her post." So while it seems that Jacob and Isabel are still just engaged, it wouldn't be a huge surprise if Jacob decided to tie the knot secretly. The 20-year-old has been keeping a low profile since he slammed his family's reality show — and claimed it was fake.

"After the few first years of testing the waters, the whole process did a sort of flip where events became subject to the filming, that is, became more orchestrated than spontaneous, in a weird indistinguishable mix," he wrote in his book Verbing.. "That phase went on for a while, too, until turning into the dominantly orchestrated ordeal it is today."

He continued, "Chiefly and simply, it forced me to grow up faster than normal (whatever a normal rate may be). Doing on the fly interviews and formal ones alike forced me to answer certain questions about myself, my family and my life that I normally might not have wondered about for some years."

Jacob and Isabel announced their engagement last month. We can't wait to see the wedding photos!