Final answer:
A couple or person may be considered for infertility testing after lack of pregnancy after 12 months of unprotected sex.
Step-by-step explanation:
Infertility is the inability of a sexually mature adult to reproduce by natural means and is defined as the failure to achieve a successful pregnancy after at least one year of regular, unprotected sexual intercourse.
According to the American Society of Reproductive Medicine, a couple or person may be considered for infertility testing after lack of pregnancy after 12 months of unprotected sex (desired or undesired pregnancy).
At this point, it is recommended for both partners to get assessed for potential fertility issues. The assessment typically involves a physical examination, blood tests, and semen analysis to evaluate sperm number, shape, and motility.