5 days late!

Im 5 days late for AF. I'm not going to take a test until tomorrow. 
​My cervix feels really low and firm and a lot lower than usual.
​I have been getting slight cramps every day but they don't feel like period pains. 
​Everyday I get these pains, they aren't bad just a little tight cramping but I never come on my period. 
​My CM is creamy, smooth and a little bit thick.
​I'm so nervous about getting a BFN. I want to see a BFP!! (As most of us) but I've been getting all these strange differences in my body? Help?