bleeding after miscarriage

I had a miscarriage that started at 7 weeks. I bled naturally on my own for 4 days then had an ultrasound that showed a lot of retained tissue. after 2 rounds of vaginal cytotec I went back to my doctor 2 weeks later and still had less than 1 cm of tissue left. not enough to do a d&c; so I bled naturally again for 1 week then it stopped. a week and a half later I started spotting brown blood and now 2 weeks after I finished bleeding I'm having a lot of bright red blood mixed with clots. enough to go through 3 tampons a day. Is this my period or is it too soon after miscarrying to start my period?