Oooo someone else that is a potential goatee person!

Honestly, I wouldn't be worried about the sides and the bottom quite yet. You've got a good start going there and it will definitely fill in during the next few weeks.

You may want to carve the neckline the day before you go back to the office, but you should be fine by that time to look like you're growing a beard - if not quite being in the bearded man category quite yet. Don't forget under the ears.

If you want a longer beard, you can always let those parts grow once the rest has gotten a wee bit longer after all. Might not feel quite right with the 2 different beard lengths, but if you're worried about the boss looking at you funny, then it is probably a better way to go.