Whether there are in a female cycle such days in which it is practically possible are not afraid ber...

[stepan]

Whether there are in a female cycle such days in which it is practically possible are not afraid beremenosti and if there is that when they go or how h vycheslit????

[Soboleva L.I.]

If a cycle regular such days are. As them to calculate - look on the Internet. However even at the most stable cycle this method of contraception is not so reliable.