Zión Chatelle's List: BIRTH CONTROL

Easy to Use-30 seconds/day
First of all the temperature is taken and then information about the menstrual dates is requested. This information is evaluated and is compared with more then 700.000 cycles. Next, a diagnosis is made regarding the fertility of the next 24 hours (and the following six days). The reliability of this diagnosis has been confirmed in many clinical tests.

Software to identify most fertile days.