There are also unscheduled pregnancies and a huge increase in venereal infections. As has been said, it is quite typical for young women not to remember whether they had sex. They get the morning after pill on the basis that they may have had sex but do not remember. This certainly contradicts the message of the advertisements: if one cannot remember whether one had sex within a few hours of the event, it scarcely suggests the experience was either memorable or enjoyable. At least on the few occasions I have had that pleasure I have certainly remembered and knew all about it.