Secure, private, reliable online sympto-thermal charting
for couples practicing natural family planning

Recent enhancements

  • New! Peak days and pre-rise baselines can be overridden manually in any cycle.
  • Most data can be edited in place in the observations table.
  • Peak days and pre-rise baselines are calculated automatically and displayed on charts.
  • Temperatures on charts are much easier to read.
  • Disturbed readings are more noticeable with dashed lines.

To learn more, please visit our blog

Sign in

If you have a Yahoo! or Google account, you already have an OpenID. Please click on the corresponding link below.

Sign in using your Yahoo! account Sign in using your Google account Sign in using any OpenID

What is OpenID?

Join our group

You're invited to join to our Google group for news and discussion.

Your e-mail address

Visit the group without subscribing