Im supposed to be on my period but my backs been killing me for two weeks and after 4 chiro and 3 massage treatments it wont go away. Mild cramping the whole time as well. My period supposedly started 2 days ago but it was super light brown spotting and light watery red/ brown on and off barely enough to fill a pad with no clots. This is a cheap equate test. What should I try next if this looks like a positive?