It has been
approved by the US Food and Drug Administration as a fertility diagnostic device and aid-to-conception, a claim no other Windows or Web-based fertility application can make. It is based upon the best selling book, Taking Charge of Your Fertility, by Toni Weschler, MPH and was developed in complete cooperation with Toni, herself. It is the only software application endorsed by the author as a companion to Taking Charge of Your Fertility.
And now you can try it for yourself for 15 days free of charge.