2 days late and a BFN

Natalie
It's driving me crazy this month,I'm always on time or even a day early, never late. EVER. Now I'm 2 days late and got a BFN this evening. 
Not meaning to symptom spot, but we all do it, so...I'm tired, nauseous, lightheaded, headachy, funny taste in my mouth, cramps in the right side of my pelvis. 
We're in our 12th month of TTC and after a doctors appt, I've got to wait for this period before I can go and have blood tests done to start fertility investigations 😔 this just sucks. I'm in total limbo. 
Sorry to be all miserable, just frustrated and needed a rant.