Fans are wondering if a major blow-up has occured between Sister Wives stars Meri and Robyn Brown after Robyn posted an alarming tweet on social media.

Robyn Gives Fans A Pregnancy Update

Though Meri's Twitter account is usually the one that causes fans to wonder about how she feels following situations like her shocking divorce from Kody last year so he could remarry Robyn in an attempt to legally adopt her kids from a previous marriage, as well as the recent announcement that Robyn was officially pregnant with she and Kody's second child.

However, Robyn is the one who is now causing fans to wonder if something went down between she and Meri, after tweeting about betrayal.

Are Fans Considering Boycotting 'Sister Wives' Over The Baby News?

"The sting of betrayal is the worst kind of hurt," she wrote. Almost immediately fans took to their own Twitter accounts, not only telling Robyn they hoped things were okay, but immediately speculating that something happened with she and Meri.

"What's wrong with Meri?" one fan asked.

"Meri upset?" another asked.

"Yes definitely praying for Meri," another wrote.

Meri's own Twitter page doesn't seem to hint at there being any sort of problem between she and Robyn however, with her latest tweets all showing more inspirational quotes, none of which seem to be hinting at strife between she or another Sister Wife--let alone Robyn.

If there is drama unfolding between the wives however, it could lead to some more unexpected twists in the story when their reality show returns to TLC, reportedly later this fall.