No symptoms of AF?

I usually have at least some brown discharge before AF shows up. I have PCOS so my cycles use to be irregular. I took birth control for about a month and it worked to help my cycles regular. This is the first month off BC and I ovulated on time and then baby danced. Glow said my period should have started 3 days ago, but yet no signs of her. I've had constant urination (like I could drink nothing for hours and then suddenly have to pee right then and there), I've had back pain, my boobs aren't to sore, and a weird craving for black olives. I'm trying not to get my hopes up. Because I'd only be almost 4 or 5 weeks if I am. Does this sound like I could be?