CM/cervix question

Cassie

So I was supposedly to start AF yesterday. I've had a varying cervix between firm and medium...but typically firm in the AM and then medium the rest of the day. I'm having a hard time feeling if my cervix is open or closed because it seems like the opening is "slimy"? My CM has been creamy/little chunky. All negative tests!

Any thoughts...Ideas... Advice... Anything?