Infertility

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 to full term. It is often defined as not conceiving after 12 months of regular sexual intercourse without the use of birth control. In the United States, around 10 percentTrusted Source of women aged 15 to 44 years are estimated to have difficulty conceiving or staying pregnant. Worldwide, 8 to 12 percentTrusted Source of couples experience fertility problems. Between 45 and 50 percent Trusted Sourceof cases are thought to stem from factors that affect the man.