Just out of curiosity, question about birth control.

It is a good question.

It is no different. That is why some women will start bleeding when they miss one pill. The difference is in the timing of the missed pill.

Missing an active pill is not dangerous, it is unsafe. Your normal hormone cycle needs to be suppressed for a certain amount of time before it will give up on ovulation. If you miss a pill, that does not happen and the level of hormones in your body drops and your own hormones can trigger ovulation. When you get to pill 21, your own cycle is so suppressed, that it will not trigger ovulation.so you are safe. After 7 days you do however haveto start again, or you will ovulate.