Everything is okay,until you have guts to admit that to the person you are going to marry. Now comes the deal,people hide. Now if you think it is wrong then do not do it and if u think it is not wrong then do not hide it. Marriage is based on honesty,always remember that. Now some girls will come forward and say,what should we do it is not our fault that the boys' side do not want to accept the truth,well then he is not the only guy for you to marry,go to that guy u had sex with and ask hin to marry then. After all,in most if the cases he has promissed her to marry,so whatever reason it may be,if you are not marrying to each other,that is your fault not that poor fella from whom u r going to hide everything. And one more thing,he has to also admit about past,if he doesn't then god bless you both and have a blessed marriage life hiding from each other.