Why is my period brown with discharge and not heavy?

Everyones periods are different, everyone has their own flow, bigger people normally have heavier flows etc. if you have just started your period then it is probably down to not settling into a ruitine yet(this can take on average of 2 years). each time you have your periods it empties out blood from your insides which it collects there for roughly one month in preperation of a child. so as u can imagine the blood clots together resulting in everyones periods sometimes coming out as a rather brownish colour, mainly nearer the beginning and end of each period so it is normal what you are going through. if you are still concerned you should see a doctor.