Robin,
I'm so glad you've posted this thread , we all know transition isn't a bed of roses and taking a step back isn't always the wrong move to make . I guess one aspect of going on hormones after telling everyone is the fear that you may have to reject the idea and people saying " I told you so !" I'm thinking more about close family and possibly work colleagues with that comment .

I hope you can resolve your dilemma , my gut feeling is your work colleagues will be more supportive than not if you cahnge your mind in the future .