What the heck does this mean?!

So I always check my cervical position. Every day. I'm 10dpo today and just now I checked my cp and it was VERY hard and closed super tight. I've never felt it so hard. I did get a bfn and I know it usually hardens a little before AF but had anyone ever just felt their cervix and thought "holy cow that's weird"?! Is it normal for it to be so firm?!