You don't HAVE to, but it would be the more prudent thing to do. Mostly due to your age and risk of shock loss, but also longterm planning as @JohnAC71 said. Not to mention that HT surgery is a big ordeal and a larger procedure would make it more worth your time, money, and emotional investment.
Either way, if you're in Seattle then getting a in-person consult with H&W would be a great idea. They'll put you on the right track.