In Britain there was also a case in which, after a surrogate mother failed to conceive following several attempts at artificial insemination with sperm from the prospective father, they finally decided to try the "natural" method. They had intercourse several times before the surrogate conceived.
英國也有一個案例，請人代孕的「父親」捐精數次孕母都無法受孕，最後決定用「自然」的方式，同房數次才使孕母懷孕。