A new relationship is the best thing in the world, nothing gives such a thrill as that. As time goes by, you begin thinking this is the person you want to spend the rest of your life with which gives way to wedding thoughts or maybe a family. For many, this will also bring up the idea of a prenuptial agreement, but when is the right time? Is there an time during the relationship that is too early or too late? Neither answer is wrong but this discussion should not take place with the first few months of dating, but certainly before you are engaged.
After engagement would be very awkward because then it would seem like now that you are engages, sign this so we can get married. Talking about this before hand is certainly less threatening and would just be like discussing your beliefs. For that couple who are really reading to move in that direction, this talk can be done openly and honestly.
This is done for protection for both sides for future and current assets. Although statistics tell us that about half of marriages do not last long, and when this happens, it will be everyone for himself, so this protection will come in handy.