My period came 3 days late. its ligjter than usual and brown. why is ot not red like usual? i had second miscarriage in august.

Brown discharge is : Old blood (as the vagina is being cleaned out). The main reason for light periods is a change in hormone levels. Causes for what seems to be a light period can include: implantation bleeding in early pregnancy, thyroid problems, eating disorders, excessive exercise, initial periods for a girl, use of an intrauterine device, oral contraceptives ; perimenopause.