They look pretty small to be transplanted. I would give them a week to ensure that you have a nice solid root base to work with.. you dont want to go through the trouble of germinating them for nothing.
another thing you can do is gently remove the plant from the cup and see how much root development there is. if there are alot of roots and they are twisting around the outside of the soil around the cup, then it is probably time to transplant.
But you should wait until atleast the 2nd internode or leaf forms on the plant.. it is way to little at this point in it's life.
hope this helps..
Peace and happy growing..