MonthlyInfo is a simple tool to help you keep track of your menstrual cycles.

Welcome to! If you're wondering what this is all about, check out the FAQ below, or you can get in touch if your question isn't answered here. — Heather

Bust Magazine

As seen in BUST Magazine, the Washington Post, and the Wall Street Journal

Frequently Asked Questions

What is this all about?

MonthlyInfo is a simple tool to help you keep track of your menstrual cycles. Basically, you record each time your period starts, and MonthlyInfo uses your history to generate predictions and statistics about your cycles. You can then create and customize reminders which can be sent to your email address or text messaged to your phone.

Is this free?

Yes! There are no premium subscription features; the site is 100% free. But if you find it useful and want to help offset the cost of keeping it running, donations are always appreciated.

Are you going to send me spam or use my email address in some nefarious way?

No! After your welcome email, you won't ever hear from MonthlyInfo unless you set email reminders.

My uterus has a small person growing inside it. When my cycles return to normal, how can I tell MonthlyInfo to ignore my pregnancy?

You can choose an "ignore before" date in your settings. When making predictions and generating statistics, MonthlyInfo will not consider your history before that date. (P.S. Congrats!)

How can I track [insert anything here]?

You can use notes to track any info you want in your history. If you want to track your basal body temperatures for fertility monitoring, go to Settings and select "track basal body temperatures."

How can I keep up with changes to the site?

Big changes will be announced in News, and random thought-pebbles will be dropped in Twitter.

Who are you, anyway?

My name is Heather Rivers. Feel free to say hello if you have a question, problem or suggestion!



Everything about reminders is up to you. That includes email subject and content, whether it's before or after your predicted period or ovulation, and how it's delivered. Any given reminder can either be sent to an email address of your choice, or to your phone via a text message. Or if you just want a place to record your cycles for medical reasons, you can completely disable them.

Many women find it useful to receive a reminder before the start of menstruation, so they aren't caught off guard. Some women send ovulation reminders for fertility tracking purposes, and the forgetful can remember to keep MonthlyInfo up-to-date by scheduling reminders to arrive after their predicted periods. Another great way to stay on top of your health is to set up a monthly self breast exam reminder.



1. Print

This might be useful if you want to bring your history and notes along to your next gynecological appointment for reference. To print your full history, just click the "Export/print" link in your dashboard.


2. Download as CSV

A .csv (comma-separated values) file can be imported into many spreadsheet managers, such as Microsoft Excel, and Google Spreadsheets.


3. Export to iCal

Clicking on "Export to iCal" will allow you to automatically import your full MonthlyInfo history and predictions to iCal. Choose "Refresh every hour" or "Refresh once a day" when prompted to make sure it's always in sync.


4. Export to Google Calendar

Similarly, you can export your full history and predictions to Google Calendar by clicking the "Export to Google Calendar" link.


Here are some examples of what MonthlyInfo can tell you about your cycles:

Your cycle durations General information Current phase of cycle