I honestly don’t remember who turned me onto this site, but I think it was one of my Twitter pals. Mon.thly.Info is basically a site to track your period easily.
From their site:
How does it work?
Each time you start your period, add the date to your Mon.thly account, and it will use your history to predict the next time your cycle will start. This provides you with a record of your menstrual cycles, which can be an important addition to your medical history. If you want, Mon.thly will also email you a customized reminder before or on your next estimated start date.
PLUS: It’s a great site design. Aesthetically pleasing, love the graphics, and way easy maneuverability. There’s a clear “About” page to tell you how to do it. If you choose, you can have an email reminder sent to let you know your cycle’s coming. The more data you feed it over time, the better it becomes at predicting your cycle. Great for knowing when it’s coming, or to have the info for that infamous question, “And when was your last period?” Here’s some screenshots in which you find out more information than you EVER wanted to know about me.
MINUS: The only thing I can see is that you cannot mark notes on the days – it’s strictly a calendar. In other words, if you want to track your flow, or pain levels, that’s not possible here. This also wouldn’t be a totally fabulous tool to try and get pregnant, except for a general ovulation date.
EQUALS: LOVE IT. I love it. I use it. I recommend you use it too!