So confused and frustrated

So I always had periods every 28 days.. I got pregnant in July and miscarried at 5 weeks at the end of July.... I bled til beginning of September, I think I had the start of a period on the 24th of August.... well I feel like it's been forever waiting for a period I think it's like 36 days and negative pregnancy tests... I'm so frustrated if ain't flow is late when is she coming?