Hi doctor. actually my period is 12th but 6th is light period is came what are the causes?

Hormones: IIt is not unusual to have some irregular cycles. Menses can be affected by many things including but not limited to body weight, exercise, stress, and hormones including estrogen, progesterone, prolactin and thyroid. Continue routine care with your doctor and unless you are trying to get pregnant consider starting birth control pills to even out your cycles for awhile.

Common problem: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections & hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit.