Reasons for infertility
Approximately one in six couples have difficulty achieving a pregnancy. It has been found that female factors are responsible in 30% of cases, male factors account for a further 30%, combined male and female factors account for 20% and the remaining 20% of cases are unexplained.
Under normal circumstances, the chances of pregnancy occurring as a result of unprotected intercourse during the fertile time of the cycle are about 25% per month. After 12 months of trying, approximately 80% of couples will have conceived.
