EXCLUSIVE

TLC has just pulled all airings of "19 Kids and Counting" from its lineup ... TMZ has learned.

Sources familiar with the situation tell TMZ, the fate of the show is uncertain, but there's now so much heat in the wake of Josh Duggar's molestation confession ... the network had to make the decision.

We're told they absolutely have not made a long-term decision, but it's clearly a bad sign for the show.

And there's this ... a rep for General Mills tells TMZ, they have already blacklisted the show and removed it from their company's current advertising schedule.