Period returned when bb is 6months old

My period returned in full force on 17/09/14, actually it returned abit last month.  My boy is 7months old, I am still bf so I thought it won't visit me so fast :(  My period cycle seems to be more normal now, it's about 29days instead of the very short cycle (23/24days) before I was pregnant.  And the flow is more than last time.