My periods come on time every month . First two days are normal both flow and blood colour but from last four months i am noticing that the quantity of blood on the third day of period coming very less , i can use one sanitary pad for whole day and the colour of blood also differs on third day i.e brown. I am not feeling any weakness and no other symptom. Is it normal to bleed less on third day of period? If not, thn what could be the possible reason?