Has anyone ever experienced this?

Was suppose to start my period 1/27. And didnt. So Glow pushed it the the 29th. Nothing and now the 31st. Which would be cycle day 34 and normally I'm on a 29-30 day cycle. Well for the past three days I have had all symptoms of a period..cramps bloating acne pelvic pain etc....but nothing but white cm. And lots. I keep thinking I'm starting but I'm not. Every test is negative. And I've already ruled out infection. As the cm has no odor or I'm not itchy or anything. So my question is has anyone experienced this and had a BFP or could there be something wrong with me :-/