Please! Please! Answer this! I need your help on some advice/opinion! D:?

I have been on pills for about 5 months and I'm on the the placebo week but my period hasn't come. I have like 4 days left to see if it starts up but around this time I should've started spotting at the very least. I have taken my pills faithfully only taking them late from 1-7 minutes late. I had on my placebo week last month and again 2 weeks ago, only since I was 7 minutes late I went ahead and took plan-b one-step could the plan-b affected my period?