Infertility
Inexperience reads money, when pregnancy is not observed for 1 year on the background of regular, unprotected sex. The frequency of infertility in a pair of children at different ages is 10 - 15%. After the last flight, the structure due to infertility is assessed by the following education: 40% for the male factor factor, 40% for the female factor factor, combined (female and male factor simultaneously) - 10%.