a1 Department of Obstetrics, University of Ghent, Belgium
The investigation of women in Flanders born between 1931 and 1962 shows that premarital sexual intercourse has become almost general and that the age at the onset of sexual intercourse is steadily declining. Until the 1970s in spite of the improving contraceptive behaviour of youngsters, the number of women experiencing premarital pregnancy increased and first conceptions occurred at an increasingly younger age. The 1970s marked a turning-point: fewer women became pregnant before marriage or in adolescence. From that time, the contraceptive revolution kept pace with the sexual revolution.
(Received February 06 1987)
* Department of Anthropology and Social Biology, University of Ghent (RUG), St Pietersnieuwstraat 39, 9000 Gent, Belgium.