Sexual intercourse before marriage may affect to the child whom was born. It will make on the absence of recognition biological father legally. It means that woman herself will bear her child from getting pregnant, giving birth, educating, and until raising them. This study aims to examine the median age at first marriage and the experience of having sex for the first time against trends that have occurred in decades of Demographic and Health Survey (DHS) data collection results. This study used DHS secondary data from 72 countries that posted their survey on its website. Data series got from website were vary in each country. It might be caused by the related country had not conducted survey at that time. The analysis was conducted by regarding trend of time between median age at first marriage (MAFM) and median age at first sexual intercourse (MAFSI). Normally, the country which still uphold religious and traditional values, there is relatively no different time between MAFM and MAFSI or MAFSI is little bit longer than MAFM. This study shows the trend that MAFM had increased simultaneously from 1991 till 2017, on the other hand MAFSI had decreased, and even interval between them have been getting further. There is a positive time gap that the state or its people still uphold the dignity of women. It means that women are treated legally even though some of them married before 18. The society still uphold religious norms. On the other hand, if MAFSI less than MAFM indicates that the society are permissive and ease of religious norms. This study recommends that preventing sexual intercourse before marriage is the duty of the state and it needs collective action to participate in care, besides having a positive impact on lineage. It will also protect women and their children from the loss of legal inheritance rights in the family.