I am 23 years old, healthy, and on mononessa birth control. During the pill cycle, I have missed a pill and didn t realize it until the last day right before I m supposed to start my period and noticed I had an extra pill left. I took the extra pill the following day (Sunday). I don t know when I missed the pill, but I m starting to worry. I always start on Wednesday (today) but haven t started yet. Last Tuesday I had the brown discharge that lasted two days...it was brown like it would be right before your period begins, no blood or anything in it. I had sex twice using the pull out method. Could I be pregnant, or could taking the last pill a day late delay my period?