BC Pill Help

Melody • Living life for the thrill and adventure. Motorcycle lover
Just a quick question. My birth control contains a week of placebo pills where they drop to like 0.3mg or something to allow my period. If I just don't take this week of pills will it screw up the birth control part of this? I just hate to take unnecessary pills. I thought I'd heard before you could just go off that week, but I wasn't entirely sure.