I had a d & c 7 weeks ago, i had my period 5 weeks after d & c and 2 weeks after my period, i started having brown discharge. is this normal?

Discharge: Well, it's unusual to have brown discharge which is suggestive of blood after a normal period. However, in your case, the period after the D&C may not be considered a usual one as it was the first after the procedure. Brown blood suggests old blood, so i would not necessarily worry unless you're having other symptoms such as pain or discharge other than blood or fever. Just wait until next period.