Κύκλος περιόδου και πιθανότητα εγκυμοσύνης

Question

&Kappa;&alpha;&lambda;&eta;&sigma;&pi;έ&rho;&alpha; &gamma;&iota;&alpha;&tau;&rho;έ.     &Tau;&omicron;&nu; &tau;&epsilon;&lambda;&epsilon;&upsilon;&tau;&alpha;ί&omicron; &chi;&rho;ό&nu;&omicron; &omicron; &kappa;ύ&kappa;&lambda;&omicron;&sigmaf; &pi;&epsilon;&rho;&iota;ό&delta;&omicron;&upsilon; &mu;&omicron;&upsilon; &kappa;&upsilon;&mu;&alpha;&iota;&nu;ό&tau;&alpha;&nu; &mu;&epsilon;&tau;&alpha;&xi;ύ 24 &kappa;&alpha;&iota; 30 &eta;&mu;έ&rho;&epsilon;&sigmaf;.  &Sigma;&upsilon;&gamma;&kappa;&epsilon;&kappa;&rho;&iota;&mu;έ&nu;&alpha;, &epsilon;ί&chi;&alpha;:     1 &phi;&omicron;&rho;ά &kappa;ύ&kappa;&lambda;&omicron; 30 &eta;&mu;&epsilon;&rho;ώ&nu;  3 &phi;&omicron;&rho;έ&sigmaf; &kappa;ύ&kappa;&lambda;&omicron; 28 &eta;&mu;&epsilon;&rho;ώ&nu;  5 &phi;&omicron;&rho;έ&sigmaf; &kappa;ύ&kappa;&lambda;&omicron; 27 &eta;&mu;&epsilon;&rho;ώ&nu;  3 &phi;&omicron;&rho;έ&sigmaf; &kappa;ύ&kappa;&lambda;&omicron; 26 &eta;&mu;&epsilon;&rho;ώ&nu;  1 &phi;&omicron;&rho;ά &kappa;ύ&kappa;&lambda;&omicron; 25 &eta;&mu;&epsilon;&rho;ώ&nu;  1 &phi;&omicron;&rho;ά &kappa;ύ&kappa;&lambda;&omicron; 24 &eta;&mu;&epsilon;&rho;ώ&nu;.     &Sigma;ύ&mu;&phi;&omega;&nu;&alpha; &mu;&epsilon; &tau;&alpha; &pi;&iota;&omicron; &pi;ά&nu;&omega;, &omicron; &mu;έ&sigma;&omicron;&sigmaf; ό&rho;&omicron;&sigmaf; &delta;&iota;ά&rho;&kappa;&epsilon;&iota;&alpha;&sigmaf; &tau;&omicron;&upsilon; &kappa;ύ&kappa;&lambda;&omicron;&upsilon; &mu;&omicron;&upsilon; &epsilon;ί&nu;&alpha;&iota; 27 &eta;&mu;έ&rho;&epsilon;&sigmaf;.  &Omicron; &pi;&rho;&omicron;&eta;&gamma;&omicron;ύ&mu;&epsilon;&nu;&omicron;&sigmaf; &kappa;ύ&kappa;&lambda;&omicron;&sigmaf; &mu;&omicron;&upsilon; &epsilon;ί&chi;&epsilon; &delta;&iota;ά&rho;&kappa;&epsilon;&iota;&alpha; 24 &eta;&mu;&epsilon;&rho;ώ&nu;. &Tau;&epsilon;&lambda;&epsilon;&upsilon;&tau;&alpha;ί&alpha; &pi;&epsilon;&rho;ί&omicron;&delta;&omicron;&sigmaf; ή&tau;&alpha;&nu; &sigma;&tau;&iota;&sigmaf; 16 &Mu;&alpha;ΐ&omicron;&upsilon;.  &Mu;&epsilon; &mu;ί&alpha; &mu;ό&nu;&omicron; &epsilon;&pi;&alpha;&phi;ή &sigma;&tau;&iota;&sigmaf; 26 &Mu;&alpha;ΐ&omicron;&upsilon; (11 &eta; &eta;&mu;έ&rho;&alpha; &tau;&omicron;&upsilon; &kappa;ύ&kappa;&lambda;&omicron;&upsilon; &mu;&omicron;&upsilon;) &mu;&pi;&omicron;&rho;&epsilon;ί &nu;&alpha; έ&chi;&omega; &mu;&epsilon;ί&nu;&epsilon;&iota; έ&gamma;&kappa;&upsilon;&omicron;&sigmaf;; &Sigma;ή&mu;&epsilon;&rho;&alpha; &epsilon;ί&nu;&alpha;&iota; &eta; 30&eta; &mu;έ&rho;&alpha; &kappa;&alpha;&iota; &tau;&omicron; &mu;ό&nu;&omicron; &pi;&omicron;&upsilon; έ&chi;&omega; &epsilon;ί&nu;&alpha;&iota; &sigma;&upsilon;&mu;&pi;&tau;ώ&mu;&alpha;&tau;&alpha; &pi;&epsilon;&rho;&iota;ό&delta;&omicron;&upsilon; (&pi;&omicron;&upsilon; &gamma;&nu;&omega;&rho;ί&zeta;&omega; &epsilon;&kappa; &pi;&epsilon;ί&rho;&alpha;&sigmaf; ό&tau;&iota; &mu;&omicron;&iota;ά&zeta;&omicron;&upsilon;&nu; &mu;&epsilon; &alpha;&upsilon;&tau;ά &tau;&eta;&sigmaf; &epsilon;&gamma;&kappa;&upsilon;&mu;&omicron;&sigma;ύ&nu;&eta;&sigmaf;). &Pi;ό&tau;&epsilon; &theta;&alpha; ή&tau;&alpha;&nu; &kappa;&alpha;&lambda;ύ&tau;&epsilon;&rho;&alpha; &nu;&alpha; &kappa;ά&nu;&omega; &tau;&omicron; &tau;&epsilon;&sigma;&tau;;     &Epsilon;&upsilon;&chi;&alpha;&rho;&iota;&sigma;&tau;ώ &epsilon;&kappa; &tau;&omega;&nu; &pi;&rho;&omicron;&tau;έ&rho;&omega;&nu;.