You may want to consider no less than 6 therapy sessions prior to HRT. If you are TG then you basically come to the conclusion. Yes, disclose to your wife that you are TG, when sure, and then HTR, when sure. You need to go through a qualified medical provider for HRT scripts and monitoring.
I went 6 months in therapy prior to HRT.
The Social Worker asked, why am I here. I said I am TG. She asked how do I know I am TG. On my intake I broke down and did complete TG life history dump. Days prior to the intake I had typed out my history and stared at it for hours prior to making the call for intake. My life came out with a lot of emotion. The Social worker took notes and had no questions when I was done. She said I hit every base. I was all inclusive and 100% honest.
My therapist said I am a textbook TG. She teaches the subject at U of P. and I is married to a TG. After a few months I asked the therapist what exactly is dysphoria and she cited many examples that I told her. I said OH yes I have a bad case of dysphoria with many layers and severities.
Therapy has helped me to understand my self, express how I feel, learn to feel. Sharing I am TG and on HRT with a specific person, my wife included, helps me. Yes, it is selfish and I deserve a self, finally.
I have to explain the reasoning to the therapist prior to disclosing to a person, there are reasons for this. We are vulnerable in transition and we need supportive persons so when we disclose to a wife, for example, we have a safety net to be caught, in because it is a ride.
Lastly, if you can get help, it is so empowering to be your self. Do it well, you have but one chance. When the words have flight you set them free never to be retracted. Good luck