I started my period on wednesday it finished today, i havent started a new wallet of birth control pills yet. i get them tomorrow. should i start taking immediately or wait for the next period to start to start taking them as usual?

Complete the cycle: Most oral contraceptives have 28 pills (21 colored pills that contain hormone, and 7 white pills that do not. Your period should come during those 7 days of white pills. If your period ends earlier than the 7 days, continue to take them until they are done. The very next day, start a new wallet. Do not start a new wallet on the day your period ends. You need to complete the cycle.