Menstrual Cycle After MC

Hi ladies I’m 5 weeks post miscarriage and still getting positive tests (with cheapies) and my last quantitive blood draw was on 9/21 and was a little over 200. I started spotting today, is it possible it’s my period? I also have cramping, sore swollen boobs. I always thought HCG had to be close to 0 for this to happen. Thanks :).