Way TMI but please read. so confused!!

Mrs. F
This morning, I had some thick snot like CM (not really ewcm) with tinge of yellow after I wiped. I've honestly never had that before. AF is due tomorrow BUT my OPK's are also getting progressively darker. I just had a positive OPK 2 weeks ago today. My body is giving me so many different signals, I'm so confused 😒 Thoughts?