this happened to me once too. the "brown" colored blood is likely old blood just now making its way out. i always would get a regular period about 6 or 7 weeks after the mc and it was always heavy until my body got itself back on track. i would like to say that after 3 unexplained miscarraiges and one molar pregnancy i have 2 healthy children and now all my husband has to do is breathe on me and i am pregnant!!! =) good luck to you!!!
You cycles just need time to regulate... If it is implantation bleeding it is only there once or twice not for days... Sorry for your loss and good luck...
It sounds likely to be your period...it has been like 30 days since your mc....When I had my mc I spotted on and off for the first month then got my period at like day 30 then my next cycle was 44 days-I was so excited and thought I was prego BUT it was just my body being messed up from the mc. It can take awhile for your cycles to get back to what is normal for you. Sorry to hear about your mc and good luck ttc...baby dust!