Weddingbee boards

I have had 2 siblings ask me about a prenup.  While I currently have more income and assets than my fiance (significant amount), in 5 years when he is totally done with his education, his income will be twice mine (or more).  I believe in death til us part, and he does too.  It just really bothers me hearing this.  Anyone else hearing the same?  It's already a little nervewracking making the biggest decision of your life (and I second guess myself on whether I bought the right kind of cereal at the grocery store), and this doesn't help!