Hey guys my period ended 2 weeks ago and I started spotting a few days ago with brown discharge then frank/dark blood that was moderate and heavy bleeding today with bad cramps like I am on my period again. I would say I am probably bleeding more then on my period. I am supposed to be ovulating (I am not regular usually between CD 16-19) and am on CD 20 right now but have not gotten a positive OPK yet (started testing on CD13). Any suggestions what this is?!? Kinda concerning. Thanks!