"Regulated"?
I can't say enough good things about sympto-thermic ovulation tracking. What you do is figure out when you're ovulating, don't have sex (or simply use barrier methods) around it, and voila, worry-free boot-knockin'. I'd rather be abstainent for the rest of my life or get a hysterectomy than ever go on the pill again. All of you who can tolerate them - especially high dose ones - have my respect.