As of this post, I have more than completed the required 90 day WPATH requirement to begin hormone treatment. I expect HRT (hormone replacement treatment) to start on May 22. Another requirement is to live fully as a woman for 1 year before GRS (gender reassignment surgery). For the last year I have been fully immersed as a woman at home, Dr. appointments and at the transsexual support group. I plan to wait until the HRT has enough of an effect (about 6 months) before coming out full-time to the world.
All my friends and the people I work with know about this. However, especially at work, this will give them a 6 month period of time to gradually get used to my transition.