Hello the doctor. A question silly enough: will not prompt as vyschityvat...

[Anastas]

Hello the doctor. A question silly enough: will not prompt as to calculate a menstrual cycle? I already for a long time try to make it, but any law I do not see. And whether it is normal if it or him is not present (law). In advance thanks.

[Malanova T.B.]

The first day scarlet vydeleny is considered for the first day of a cycle. Law should be necessarily.