Inactive Is It Normal To Not Start Your Period On The Inactive Pills Or Should You Be Worried?

Is it normal to not start your period on the inactive pills or should you be worried? - inactive

This is my second month of YAZ birth control. Last month, my first month I had my period after taking 3 of 4 inactive pills. I know that if you are on birth control immediately Your system may no longer be controlled, but when I got my period during the inactive pills. Now in my second month I had my last pill today inactive, which means that I shuold my time yesterday (or at least for now, I think). I will start the active pills (new package tomorrow). Is this normal or should I crazy because I already am. Please help!