Main Screen

You always see the state of your fertility indicated by the halo of the lady.

For the first cycle your state of fertility stays on red (fertile) during the days of your menstrual bleeding.

This is because Lady Cycle does not know whether a temperature jump has occurred in your previous cycle. This is a necessary prerequisite to safely determine that your menses are infertile days!

However, from the first cycle on when a temperature jump was determined, Lady Cycle uses the standard rules of the symptothermal method to determine your state of fertility.

Entry Form

The entry form is divided into two forms:

Basic: Enter all data that is necessary to determine your state of fertility.
Advanced: Enter information on your psychological and physiological well-being.

Complete the form, leave everything empty that you do not want to fill out (yet) and click on the tick mark to save your entry.

The entry for a given day can be adjusted at any time. This way you can easily adjust for example your highest perceived cervical mucus quality when you note in the afternoon or evening that it has changed.

Use the arrows to quickly enter consecutive days (e.g. for entering previous cycles). Clicking on the left right arrows saves your entry and jumps to the previous or next day. Sliding to the left or right does the same (but does not work on all devices).

You want to use the basic or advanced form only or you don’t want the help texts to appear when you click on a title? Select you preferences in the options (Option wheel / Mode and Option wheel / Disable form info).


The display shows you your temperature curve. The infertile periods of the cycle are indicated by the green background, the fertile period by the violet background. You can also see the strength of your menstrual bleeding (at the beginning of the cycle), your cervical mucus quality and cervix position, firmness and opening.

You can also determine the end of your fertile period manually by clicking on the three squares on the top right and then simply select the date when your fertile period ends according to your own evaluation.


  • ME (manual evaluation): for cycles where you entered the end of your fertile period manually
  • PC (pregnant cycle): for cycles where you were pregnant, breast feeding or where you stopped entering your menses for a while (excluded from statistics)
  • PP (post pill): for cycles where the end of the fertile period was determined based on the special post pill rule. Please deselect the post pill rule as soon as you had your first cycle with a temperature jump by clicking on Options Wheel / Special Rules / None.


In the calender you are given an overview by month and you can jump directly to the date you would like to enter in the entry form.

Please make sure that the date you meant to click on is the one that correspondingly shows in the entry form.

You can of course also use the entry form directly to adjust the date (by just clicking on the Change Button next to the date, see above). Click on the three squares on the top right to see the legend on your phone.

Save, import, and export your data

Click on the Action button of your Android phone (three squares on the top right) and then on backup. You can backup to your SD or by email. Automatic backup to SD (Options Wheel / Automatic backup) is possible. We recommend you do additional backups per email in case something happens to your smart phone (damage, loss).

If you change from one phone to another, the easiest way to get your data to your new phone is: Backup per email (send the database to yourself), and then open the email with the database on your new phone with Lady Cycle.

Backup to SD uses (depending on your device) the external partition of your internal SD card or your external SD card. Lady Cycle tells you where your data is being saved so you can copy it to a PC or other devices should you want to.

Options / Settings

Manual and More

Click on the Action button on the top right and then on contact to send us an email with your questions / bug reports. Feel free to attach your data with the email, should you need particular support with your cycle.

Please contact us directly for bug repots / feature requests not via Google Play ratings. So we can help you much faster.

Clicking on the action button will also get you to our tutorial and manual. The manual contains various help pages for you to learn more about how to use Lady Cycle, how the rules work that determine the beginning and end of your fertile period and much more.

In the References you will find all references used to develop Lady Cycle, as well as literature suggestions on how to learn more about natural family planning with the symptothermal method developed by the NFP workgroup.