I think schools need to teach boys of female sexuality in more scientific details such as women are only capable of getting pregnant only 5 days up to her ovulation day plus 24 hours post ovulation in her entire menstrual cycle. Sometimes females use sex to attach themselves to males they see potential as a mate ( the evolutionarily proven strategy of trading resources with sex) and man ( assuming he is an honourable person) end up paying lifetime child support or marrying her.