how long after taking Desogen can I concieve?

I have been on Desogen for 6 months now after switching from another one. I have always had my "period" come right on time when I'm on the pill. But, I should have gotten it yesterday or today and still have not. I have slight cramping but no bleeding or spotting. I have never missed a pill or taken one late (I set an alarm on my cell phone so I always hear it to take it!)

Is it normal to for Desogen to cause missed periods sometimes? Has anyone had this experience before? My appetite has somewhat increased like it usually does before I bleed and my breasts are tender... so I don't know?

Any help is appreciated!

Well, I hope that I am not posting too late, as far as I know there is an increase in the chance of becoming pregnant each time you miss a pill during a menstrual cycle.You MAY BECOME PREGNANT if you have sex in the 7 days after you miss pills.