Has anyone had problems with this pill? I've gotten pregnant with it once already (I missed one pill by about 8 hours, so this might of been my fault) but I think I may be pregnant again after taking it perfectly. Does this pill have an abnormally high failure rate? I didn't even have sex when I would normally ovulate (and yes, my periods have been regular for many many years now, and I've never had breakthrough bleeding or missed periods because of my pill).

I was taking tri-cyclen low before this one for about 2 years and never got pregnant on it.