Usually when people ask this question they see mucoid placque the very next day. ;) So don't give up hope!
However, it is possible you just don't have any - I never did. But then, I was never really all that constipated and I don't tend to create mucous. I tend to get diarrhea instead.
so... we're all unique! just try to set a reasonable health goal having to do with healthy stools and transit times and leave it at that. :)