PERIODIC CALENDAR

Periodic Calendar is a GUI utility which can be used to:

* track women menstrual cycles
* calculate the fertile days when the probability to get pregnant is high
* calculate the "safe" days when the probability to get pregnant is minimal
* predict the day of the next menstruations
* record the pregnancy
* calculate the pregnancy weeks
* predict the baby's birth date
* record the personal notes for any day

At this point the fertility prediction is based on the calendar method only which is not very precise. It is not recommended to use this method alone for the natural family planing.

In the future versions it is planned to add the support for the BBT (Basal Body Temperature) method which in addition to the calendar method provides more precise predictions. However, this method requires more efforts (daily temperature measurements) while the calendar method requires only to remember the cycle start dates and enter them somehow into the program. The effectiveness of the BBT method itself is about 80-90%. Combining more than one method makes the predictions more effective.

Other self-observations methods I know are really hard to support on a computer.

THIS PROGRAM PREDICTIONS IN NO CASES SHOULD BE USED AS THE FINAL. THE METHODS USED ARE NOT 100% PRECISE FOR ALL WOMEN.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.