Don't Be Like Brenda.

The brutally entitled Don't Be Like Brenda (1973) is an eight-minute lecture to young women, telling them not to be sexually promiscuous like the film's hapless heroine – although heaven knows, the promiscuity hinted at here is tragically modest. Poor Brenda goes all the way with a boy who does not marry her. The film is stunningly without any useful educational content on contraception and makes it entirely clear that the woman, not the man, is to blame. The film even makes her poor unwanted child suffer from a heart defect, so that no one wants to adopt the poor little thing – just to hammer the point home. (from: http://www.theguardian.com/film/filmblog/2009/feb/11/sex-education-films)