i have been on ortho novum 1/35 for almost a year, have missed one and a half months before and on several occasions have missed a few pills but took them with the next one...i read somewhere that you should use another form of protection for 6-8 weeks or only 1-2 weeks just to be certain you don't get pregnant...i've never had any kind of 'scare', does this mean i can't get pregnant? how do i find out if i'm unable to conceive???