Light bleeding on time of period with cramps. normal color and don't feel any different from my other periods. am i pregnant?

Take a pregnancy : test if unsure. 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.