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Periodic Calendar

Track menstrual cycles and predict fertility periods.

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Periodic Calendar is a GUI application for tracking menstrual cycles and predicting fertility periods, with results intended to support conception or contraception planning. It supports the BBT and sympto-thermal methods, and users can select any subset of features or fall back to the generic calendar method. The project notes that predictions are not a substitute for fertility planning consultants or doctors.

The application runs as a desktop GUI and is free software distributed under the GNU General Public License. It is aimed at individuals tracking their own cycles for fertility planning purposes.

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