TMI!!!! Two years of trying before miscarriage

I recently had a miscarriage in July. I have TTC again after. Last month I had a heavy blood flow which I’m usually always medium to light. My period is not due in 5-6 days. It’s been 3 days of experiencing light pink to brownish bleeding. Is this period? I am not sure how to log this in as. No period symptoms when I usually do. Please advise. Thank you