Is it possible to not get your period when your on the pill? I'm a college student who is on the pill, reclipsen, and I am on my last day of placebo pills tomorrow I'm supposed to start a new pack. I know that the pill is only 97% affective but in my current relationship we rarely have sex. I have been on the pill for about a year now and this has never happened before, I always get as late as the last day i have of placebos. I've had all the symptoms but none of the result. The thing I want to know is that is it possible not to get your period when your on the pill?