Measuring and Data Analysis

Add data to Natural Cycles

To enter your daily data, click on the + in the upper right corner, or the date in the Calendar or History view. Enter your temperature and any additional data, such as menstruation, LH-test result or a note. C...

LH and why you should test for it

What is LH? LH stands for Luteinizing Hormone, which has its peak roughly 48h before ovulation. An increased LH is therefore a strong indication that ovulation will occur soon, but not a confirmation that ovula...

How and when to measure LH

The test is done by analyzing the levels of luteinizing hormone in the urine with a test strip. You can buy the LH test strips in our shop or in your local pharmacy. The tests are commonly known as "ovulation t...

Ovulation symbol disappeared, or changed day

Natural Cycles bases its prediction for your future ovulation on your average ovulation day, cycle length and all previous data. When your temperature has risen enough to confirm ovulation, the actual ovulation...

Menstruation or Spotting?

Menstruation marks the start of the new cycle and is when you will have moderate to heavy bleeding. It is important to add data of all the days of your period in order to keep track of exactly where you are in ...

Traveling while using Natural Cycles

You can keep measuring even while traveling, just remember that Natural Cycles requires internet connection in order for you to be able to add data. If you will not have access to internet during your trip you ...

Using Clearblue digital ovulation test

Some of you Cycler’s use Clearblue digital ovulation test with dual hormone indicator to find your ovulation. This is perfectly fine, but please keep the following information in mind. When Clearblue's ...

Irregular sleeping habits

You can use Natural Cycles even if you have an irregular sleeping schedule, the key is to find what works best for you! We recommend that you try and measure five times a week to give the app a lot of data to u...