period after miscarriage

I had a miscarriage at 6 weeks pregnant. I bled for seven days and it stopped. Nine days later I got my period, and I was wondering if that was normal? I was wondering if any women out there have had this same experience. I never had a D&C and my miscarriage didn t hurt it just felt like normal period cramps. Im a 21 year old woman with no health problems what so ever, and I don t smoke or drink either.