A recent survey has exposed a worrying lack of sexual knowledge among Britons, with only four per cent of respondents classing their sexual education as excellent.
Half of people questioned were not aware of the time in the menstrual cycle when women were most likely to conceive, reported a survey by the Family Planning Agency (fpa).
Almost 30 per cent believed that douching, vigorous exercise or urinating after sex would stop a woman from becoming pregnant.
And 89 per cent did not know that sperm is able to live inside a female for up to seven days, a statistic that could put some at greater risk of unwanted pregnancy.
The survey's conductors explained that one in five pregnancies is aborted and called for increased measures to promote sexual awareness.
Anne Weyman, the chief executive of fpa, said: "None of us are born with the facts about sex and reproduction - we are taught them.
"If this doesn’t happen, myths start getting into circulation and people end up not being able to tell fact from fiction," she continued.
The fpa is calling for sex and relationships education to become a statutory part of the national curriculum.
Although sex education is taught in all schools, parents are entitled to withdraw their children from the classes at their own discretion.
Independent advice on private healthcare