What do you think?

Rose 🌹
I'm 1-2 days late, 12 dpo. Tested yesterday but was negative. 
I had resigned myself that AF was coming but she still hasn't showed and all AF symptoms eg. cramps have subsided. 
Today I've felt some minor nausea, had an on/off metallic taste in my mouth, creamy cm, slightly sore boobs, they're bigger, but mostly I am EXHAUSTED. 
Was planning to test Wednesday morning and go to docs if still bfn
What do you think?