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Dr. Eugen Jonas fertility method, Fertility Calendar, Fertility Calculator

Dr. Eugen Jonas fertility method
Fertility Days Calculator, Fertility Calendar
(Soli-Lunar Phase)

The method of Dr. Eugen Jonas is based on Soli-Lunar Phase, which is a mutual aspect between Sun and Moon in the moment of birth.

The probability of conception will be higher, if the predicted time coincides with ovulation. (However, the Dr. Jonas method is not dependent on ovulation. There are known cases, when thanks to Dr. Jonas method, the conception was possible even during menstrual cycle).

Fertility Days Calculator - Dr. Eugen Jonas fertility method

Date of Birth
Time (local time)
h min
Fertility days in the Year

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