I haven't gotten my period in 2 1/2 months and I have taken 3 pregnancy test and they have all come back negative. The last day of my last period was June 14 and on that day I had 3 big blood clots and after that my period was gone ( had it for 2 days all together). I also have PCOS and had to have my left ovary and tube removed because of it... what could be going on?