I've been on aviane for about a year and 5 months now, and have always had regular periods since. They've always started on a wednesday and ended late saturday or early sunday. This month I got it a full week before I was supposed to and it's still going (got it the 12th, today's the 19th). It stopped for a while yesterday and started back up today. It also has some strange dicoloration at times, like a very dark brown. I don't think i've missed any pills, and nothing like this has ever happened. Any ideas? Please help!