Pelvic pain and brown spotting

Aishath

Hi.. in new to this... anyways... so in trying to concieve for months now... i hav been diagnosed with pcos... so my last period was on august 31 and ended on 4 sept... according to this app... my next period will be on 30th sept...i hav been trying to conceive everyday... and today i was so bxy doing houshold works i felt like something is coming... it was in dark brown color... and sticky on my panty lines... does this mean im not pregnant??