The "in between" phase.
Where you have the characteristics of a male and a female to other people, and they notice it.
It's the worst.
As an FTM there are things you cannot hide early on and they will notice your voice, your body hair, your facial hair, and the chest unless you are extremely small, and if you have a sex life, they'll notice you're sprouting a dick, too. That's only some of the things as well.
Another thing is dealing with being in a long term relationship with a straight man when you are FTM and the untold joys of helping another man deal with his galloping denial associated with suddenly being attracted to another man. Or not, as the case might also be
And of course, there's the waiting
And more waiting...