Has any 1 gotten pregnant within the same month as they had a miscarriage?

I recently had a mc on 7/17/09 and no period still so I took a test and it says pregnant. Im confused I bleed after the mc so I know my levels were @ 0. The mc was handled naturally no dnc. Has any1 had the same thing happen 2 them and have a good pregnancy? And what r u or did u have?