I have been on Alesse 28 for 7 years, and skipped my period purposely about every three months during the last year. Recently, my doctor switched me to Alesse 21, which I was told is no different. Since this switch, I have been bleeding vaginally. Sometimes its red, most times dark brown, and almost always has clotting. At times i'll think it has stopped due to no spotting, but when I check manually there is always blood. It has been constant for three months....and becoming really frustrating in my personal relationships. Should I continue to wait if this is a regular effect of birth control? How will my doctor do a physical if i'm still bleeding during the appointment?