BC YASMIN . so confused please HELP ME?

It's because you're just beginning to take the pill, most likely. Is this your first time on birth control? If so, your body is adjusting to the new schedule and hormone levels from the pill. I know when I started Yasmin (it was my first BC pill) for the first few months, my period started just as I was starting to take the next set of active pills. I'd finish the pack as scheduled, so that you keep the hormone levels on schedule, and so that you have continuing protection. Eventually, they'll work their way out and your body will get used to it.