It took my husband and I 6 years to become pregnant. I found out about this book around year 4 and was so amazed at all of the things I never knew about my body and my fertility. I can't say enough wonderful things about this book. I think every woman should own a copy whether she is trying to conceive or not. The information in it is for every woman to know. There were things I learned that I had never been told in a doctor's office, and many "mysteries" that were explained to me in plain, simple language. I copied and used the chart she provides in the book for several months, and because of the information they provided my OB/GYN was able to properly diagnose my "infertility" problem. I'm now the mother of a very precious baby boy!