Breakthrough spotting on YAZ?

i have been on yaz a few months..... i am on my 3rd week of my pack and i startinting a brownish/pink color...extremely light i will also add. but i have missed 3 pills (took them as soon as i remembered of course) and have been taking them like in a 3-4 hour time difference ranging from 9pm-1am. i know this is bad and all so could this be causing the spotting. also, how many days of taking my pill correctly will it take for me to be able to have safely... i thought i read 7 days? thanks, and i have a timer of my watch now to remind me. i only had once and that was at the beginning of my pack, like within the 1st week.