Man, some of this stuff is on my mind ALL the time. I have a super irregular period, though I'm not on birth control and once I do get it, it's about the same flow and time wise each time. But there are times when I'll go three months with out one and then I'll have one every month for a few months in a row, and then nothing for like 4. So I feel you there. I'm not sexually active, so that's not really an issue at the moment, but yeah... I've thought of the same plan myself for when the occasion should arise... Yarg.