🆘Opinions please?🆘

AF is due in 6 days. On Tuesday I experienced some very VERY light pink spotting (I mean barely even noticeable, for some reason I glanced at the toilet paper after wiping from my morning pee), again but a little more noticeable Wednesday, then barely noticeable again yesterday morning. None since. Wednesday night/Thursday night around 3am my right boob was throbbing for around 10 mins, but nothing on the left. I've taken 3 tests so far and all 3 BFN. I've also had mild headaches every day starting this past Sunday up until yesterday. I'm going to wait a week before taking another test. Has anyone else had these symtoms? If not pregnancy, what are your opinions?