After miscarriage.

Jamie
Ok, I had a miscarriage August 28th. They did a d and c and I still haven't got my period. At my check up my dr put me on a low dose of metformin. Bc I have PCOS I don't know if I'm ovulating regularly. Anyway. Can anyone tell me when I should test again?? I'm late if u consider my miscarriage my last period. Just by like 4 days but I'm just so anxious. Anyone else have anything hopefull to tell me. Any idea when I should expect my period after miscarriage?? Any idea if I could be preg again this quickly??  No signs of feeling preg as of yet. Any comment would be appreciated. Thanks guys