A prenuptial agreement protects you and your future spouse, but it is something that can be hard to discuss with them. This is because of preconceived notions that you are planning for the marriage to fail if you want to have an agreement in place. One thing that both parties must remember is that the premarital agreement will provide equal protections since it can't blatantly favor one person over the other.
When it is time to bring up the subject, you need to make sure that you are doing this in the best manner possible. Make sure that you are in the right place. This isn't something to discuss over dinner at a restaurant unless you have both already agreed that one needs to be established. Instead, bring it up in private or with your marriage counselor.
You shouldn't be defensive or try to force them to sign the document. A prenuptial agreement must be signed voluntarily. It might help you to discuss how it does ensure that neither person gets the short end of the stick if you divorce. You might even remind your future spouse that this is one way of making sure that you are on both on the same page regarding the finances, so this can strengthen your marriage.
You can't rush through the process of getting the prenuptial agreement signed. For this reason, it is best to start the discussion as early in the engagement as possible. Ideally, you will have this handled before you even send out the wedding invitations.
Once the agreement is signed, you can truly focus on building a solid marriage. Hopefully, you never have to use the prenup.