Help please!?

Period was due on April 1st. Nothing. No spotting, no cramping or any kind of signs of it. My breasts have been really sore the past two days. I tested with an EPT this morning and it was negative. Test with Wondofo 9DPO and had very faint line. I have clearblue digital coming in the mail (I live in a remote area where I can't just buy one) Do I try to get into the doctor to see what's going on or wait it out a little longer?