2 days late and nothing

Kimberly
2 days late for AF. For the last 6 months I've been either early or on time with AF. Tested this morning and nothing. My only symptom is sore boobs, but I always get that with AF too. Usually a few days before AF I can feel it in my stomach coming. I start getting crampy. This time nothing. Any insight? It's been 14 months of trying and nothing.