test to early?

Kelsey

I have been sick all month, sore boobs and very moodie I'm due for af tomorrow 6-17 and I have tested past 3 days all bfn will be 14dpo tomorrow the 17th as well could I have been testing to early... i know with my last pregnancy i didn't get a bfp till af was due... but I also know every pregnancy is different... help please very impatient and nervous...