Welcome! I agree with everyone else -- forgive yourself the few bites of barbecue sauce, it probably wasn't all that many carbs, and move on. I believe in making this a way of eating, not a diet, and if it is going to be a way of eating occasional (and occasional means occasional, not every day and not even every week) small deviations from strict low carbing have to be allowed. I ate a small piece of chicken with barbecue sauce on July 4 and it doesn't seem to have harmed me (the rest of my meal was low carb -- salad and plain hamburger).