None if your periods are irregular, actually. In one of your previous questions I did recommend "Taking Charge Of Your Fertility." It WORKS.
DH and I had tried for a YEAR with no success. I too had irregular periods.
We were actually exploring infertility treatments when I picked up the book, by Toni Wechsler. I started charting THAT NIGHT.
One month later, PREGNANT. And due to schedules, we'd only "done the deed' ONCE that month. Just ONCE. Knowing when makes all the difference... and we got the timing PERFECT. Our son is now eleven.
I CANNOT recommend this book highly enough. It puts EVERYTHING else to shame. I only wish I had all the cash I blew on those ovulation kits.
at 4:27 PM on Oct. 20, 2010