Period after Miscarriage

So I mc after about 3-4 weeks. I bleed a little come heavier then my normal period and it was all over with in 6 days. 
But now (according to glow) I should have started my period sept 30. I started to feel cramping but nothing. But I've been stopping but it's not red it the brown stuff. But it real real light, like I don't think a pad would even catch it. I mostly ware tampons and that's why I can see what's coming out. 
Have any of u had this or know what's going on with me. 
Btw I mc on sept 2.