Gardinho, welcome.  I'm only a few days ahead of you.  I've also got support from my wife and ridicule from the co-workers.  I'm going to get a shirt made that says "No, my razor isn't broken".  As you've seen, this is a great place to hang out.  Good luck with the journey.  I've seen numerous people who have less than you do at 3 weeks go on to grow some nice beards.  Time is your friend.  I found that a little beard oil helped with some of the itch.