Its a website used to help you track your cycles - ovulation, fertile periods, when af is due etc. They have a really good charting course to teaches you how to use it.
Its is free to use the basic site, if you want the more advanced options you have to pay, but personally I wouldnt bother.
The paid membership also gives you access to the forums. If you decide you want a VIP (ie paid) membership, it's worth "liking" their facebook page. They periodically run discounted membership rates ($US 25 for 1 year). They had one a few days ago, so it will probably be a few weeks before the next one.
Bookmarks