If you think it would look and operate more beautifully and elegantly than what God put there already when we conceived of us, then maybe so, that it would operate with such a marvelous complementarity on several levels with your spouse, in the image of Christ's love for the Church.   Maybe take the idea to Him in prayer and see what He says about it.

God wrote half-unity on our bodies because He didn't want us to be confused about His intended end for us. 

Marvelous magnanimity of Him, yes?