I bought a brand new Moped, straight from the manufacturer. Questions.?

Right, as the title states, I bought a brand new moped a few weeks ago. I have my provisional license, I've passed my CBT and Ive got myself and the moped insured. Now, I have to 'Register' my bike through the DVLA. As it's brand new, I do not have a number plate, how long does a number plate take to come in the post? Do I get a temporary license so I can still drive it?