Well, what doctors always told me and as it says in the info that comes with the pills.. You are suppose to wear protection for the first month when you start taking your pills.
Now i'm not saying you are pregnant by any means. I'm not sure if I read you right, but you've been bleeding since you started the pack (if you started taking them on the "1 day start" and not the "sunday start")? Or you just started taking the "sugar" pills, and your period hasn't started yet?
With my pills, my period doesn't start until after I take the 3rd sugar pill. But that is just me. I can't say much more until you clarify things a little better..