I am 25,married and trying to get pregnant.I saw my period a day late on the 28th and the heavy flow stopped on the 31st but since then I've been bleeding lightly. Help me.today is 3rd.

That sounds fairly normal for a menstration cycle, they are not always the same and you are only having a light flow currently with a heavy flow for three days and light for three days. I would give it a couple of more days to see if your cycle ends, but if you are overly concerned, make an appointment with your OB/GYN.