This is, oddly, a bit painful to recount for me, but here's hoping it is helpful to you guys...
It may be faster for FTM's with HRT, but my biological ones took a couple of years, really. First I got some weedy facial hair, an armpit hair or two, some belly hair... over a couple of years I had thin hair growing everywhere. Five years on I had a full complement of chest hair. It keeps on going, though, as you age. At 37 I started sprouting hairs *erk* on my shoulders.
It's coming, and pretty much on schedule... it just takes a while.
Good luck, you handsome devils... may you be as hairy as you want to be (and no more than you want!) 😉