Infertility happens when a couple cannot conceive after having regular unprotected sex. It may be that one partner cannot contribute to conception, or that a woman is unable to carry a pregnancy. Infertility may be caused by a variety of factors including problems with egg or sperm production, genetic factors, age, or too much exposure to certain situation. Due to this, there have been so many assumptions facing the causes of infertility, below are 8 things you should know about infertility.