Ok so my period has always been very irregular like ill have one then another the next month then not one for 3-4 months. Very irregular but anyways my last period was in march and I noticed Tuesday I was spotting brown so I figured I was going to start then Wednesday it was a bunch of brown where I had to where a bad and ever since then it's been just brown spotting not even enough to wear a pantyliner and little brown when I wipe. What could this be ?