http://www.amazon.com/Taking-Charge-Your-Fertility-Anniversary/dp/0060881909/ref=sr_1_1?ie=UTF8&s=books&qid=1253301710&sr=8-1There is a wonderful website and forum for the book, as well...
www.tcoyf.orgMy BFF gave me this book, and it really opened my eyes. I was on BCPs when I got it, and just 1 cycle after going off of them we conceived b/c I followed the charting they described. Even if you don't conceive using it, it helps you pinpoint what may be the cause. It's also good for avoiding and family planning....and she does mention mikvah practices a little bit. I will (hopefully) never go back to hormones again! Let me know if you have any questions!
The Knot won't share my Bump Siggy, so here's the low-down:
4/27/07 - Got engaged!
8/31/08 - Got married (to my best friend)!
12/30/08 - Got Pregnant!
9/3/09 - Welcome to the world, Elias Solomon!
8/16/10 - Got Pregnant, again!
5/14/11 - Welcome to the world, Talia Hadassah!
1/14/12 - Ready or not, here comes #3 (EDD 9/27/12)