the safe fertility Computers for over 25 years
Easy To Use convenient fertility monitoring

All our fertility monitors

are very easy to use. The computer is pre-programmed to display the time, date and year. All you have to do is set the time you want the alarm to go off in the morning.

  1. Take your temperature every morning immediately after you wake up - while still lying down and relaxing - by placing the thermometer sensor under your tongue for 30 seconds. The fertility computer needs this so-called wake-up or basal body temperature for its calculations.
  2. If you are menstruating press the + key. Otherwise press -.
  3. Based on extensive data collected during more than 25 years of research and development along with the record of your daily body temperature, the computer uses a bio-mathematical projection and contains additional database of more than 700 000 cycles to calculate your individual cycle and provide you with a reliable fertility forecast for the next 24 hours. 
  4. Lady-Comp / pearly uses a simple, three-color system (red, yellow, and green) to indicate fertility status instantly after a temperature has been taken:

Green light means “infertile”
Red light means “fertile”
Orange light means that the computer is still in its learning phase

The natural contraception method
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Better every time.

In the beginning you should take your wake-up temperature as regularly as possible because the more information the computer collects, the easier it is to narrow down the number of fertile (red) days. The computer is safe from the first measurement. The more data you give the computer the more it knows about you.

The fertility computer is programmed with all natural family planning research data; it contains a database of more than 900 000 cycles and uses bio-mathematical forecasting calculations as well as the very latest computer techniques. It is a personal fertility monitor, which learns and adjusts to your individual cycle.