the safe fertility Computers for over 25 years
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Lady-Comp fertility monitor
Baby-Comp fertility monitor
Made in Germany
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Your healthy choice with premium reliability

If you want to prevent pregnancy without subjecting your body to the birth control pill and other compromises, the fertility computers of Valley-Electronics are for you. Based on your morning temperature taken orally the fertility computer determines your fertile days and shows you when you are ovulating by recording, analyzing and storing your menstrual cycle data. It monitors your daily status of fertility and will alert you on the days when intercourse may lead to pregnancy: on the day you ovulate – and five days before ovulation. 


The effectiveness of Lady-Comp has a clinically proven Pearl Index of 0.7, meaning it is 99.3% accurate. The pill, for example, has a Pearl-Index ranging from 0.1 to 0.9, while the coil’s is between 1 and 3. Lady-Comp is also ISO-certified and meets all CE (Conformité Européenne) essential requirements. 

It means that our fertility computers are the leaders in natural pregnancy prevention and family planning, with an accuracy equal to the most popular contraceptive methods, but without any side-effects.

"I have been researching for weeks into natural fertility tracker and found Lady-Comp coming up as No. 1 time and time again as a natural contraception method. "
  • Stephanie N.
  • London
  • |
  • Jan. 9, 2019