I recently started taking a birth control pill and about a week before I was supposed to take the placebo pills I started to have something like a period. It is a browner discharge than my period and is much lighter in color. I know some discharge is normal when you are just starting a birth control pill but today it changed and "chunks" of stringy/greyish matter started. Is this something I should be concerned about? If anyone has any advice I would appreciate it.