The data the computers use
... to differentiate between fertile and infertile days are based on a few biological facts underlying the female monthly cycle.
One menstrual cycle - one ovulation
Every woman ovulates only once in each cycle. If on the rare occasion two or more ovulations occur, they will occur within 24 hours. After ovulation, the egg can be fertilized for a maximum of 18 hours.
Male fertility and ovulation
After intercourse, male sperm will remain active and fertile in the female body for a maximum of 3-5 days.
Timing your ovulation
This means that there are six days in every cycle when a woman can get pregnant: five days before ovulation and on the day she ovulates.
Lady-Comp supports your goals like no other
Lady-Comp is programmed with all natural family planning research data. It contains a database of more than 700 000 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 and ovulation regardless of irregularities or cycle length.
Lady-Comp is a one-time purchase without any recurring costs. Several clinical studies confirm its 99.3% accuracy.
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We care about your health
This is the first fertility monitor which focuses on the health and well being of every woman:
Without stressful or even harmful intervention in your body’s natural processes, the fertility computers of Valley-Electronics determine your personal cycle and forecast your fertile and infertile days with maximum accuracy.
"After having our second child, I happened to be at a meeting on NFP (natural family planning) where I purchased a Lady-Comp. That was 14 years ago and since then I have never been without it. I find it simply ingenious and I use it every day :-)"
- March 19, 2019