I had a lot of mucus and blood just before I was diagnosed, no stool for me either. The passing of all this mucus and blood started off quite "innocently", but escalated quickly and was extremely painful in my case. I had about 18 bms a day at that point, a fever, and was very weak, and I needed to be admitted to the hospital. If the mucus isn't associated with a lot of pain, you should still inform your doctor about the change in symptoms, and carefully monitor your bms, and if you feel like you are getting worse you should take action and not let it go too far. Mucus is often associated with inflammation in the large intestine.
I hope you feel better, and I hope the symptoms aren't too severe.
Hugs,