Whom you will ask - all " the interrupted certificate or act " a method of contraception! Really 50/...

[Keri]

Whom you will ask - all " the interrupted certificate or act " a method of contraception! Really 50/50??????????? It is No more? CHto-something gets in the extremity or end? Or it is allocated during? Or how in general????? 7

[Soboleva L.I.]

It looking whom to ask...
Reliability of this method is really equated to 50 %. As to "mechanism" - that the matter is that the part of spermatozoons is allocated long before an ejaculation. And if to consider, that it is quite enough of unique for a fertilization...