How oodles days on the "green pills" until I bring my time beside Tri-Nessa?

I am getting married in July and I am freaking out. Maybe over nil but I am having a pregnancy terrify. I use the birth control pill Tri-Nessa and I am wondering how many placebo "green pills" you roughly take until you seize your period. This may nouns dumb but I never paid any attention up to that time but for some reason this month I am vastly nervous. I'm on green pill #2 and no time of year! Any answers?? Inactive pill #2 is to early. You should hold your period after #3, or 4.
I other get my spell 72 hours (three days) after the last alive pill. So I get it on the afternoon I take the third pill.