So I only took one pill out of the 28 day pill set? Does that mean it wasn't effective at all in my body? I ask this question because I got my period on 5/12/2017 and it ended on 5/18/2017. I decided to take the birth control pill on 5/20/2017 but I decided to not take them so I only took one pill. And now just today I got my period but it looks like brown discharges mix with slight red.