chemical?

my period was due sunday. I got positive tests friday & saturday. i started spotting pink on monday, brown on tuesday & Wednesday & fully period blood today. my test were all faint. i would only be 4wks 6 days today but i dont think it was ever a strong pregnancy. my 2 symptoms were sore breast & fatigue & both symptoms are gone. i think it might of been a chemical. passed a few small clots & i know i shouldn't of used tampons but they were all i had until i was able to get to the store so I bled thru 3 super tampons within an hour each. I scheduled an appt to see my obgyn tmrw just to make sure. I tested tuesday & it was still positive (that was during the brown spotting)

these were my tests. so i guess I'll see what the dr says tmrw! i did finally get to the store & got pads btw!