The cycle is divided in two stages: before ovulating and ovulating:<br>A. The whole stage of time changes in short periods.<br>B. There's only time before the ovulating, and the next stage.<br>The ovulation can change in short periods or long.<br>There's only stages of an equivalent ovulation, and the early stages of ovulation can change in short periods.<br>Both stages have the same number of days, no matter the short period or the long period.<br>
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