Missed Period, Negative Test. Help!

So, I was due for my period between Thursday 6/23 to Sunday 6/26. I average from 28 days to 31 days each cycle.

Here we are on 6/29 and still no sign of AF. We've been trying for 18 months to get pregnant with no luck.

I had really bad cramps the whole week before my period was due, I'm having on and off cramps still, fatigue, crazy emotional crying spurts and heavy creamy cm (to the point I run to the bathroom to check for AF).

Anyone have anything like this and get a BFP late?