Some servers were very populated for the first 1-2 months with sub dropping slowly.
I did a similar "mistake", rolled on a full server at launch (5-10 min queue) and ending to a low pop in just 3 months
I have already started to level a sentinel there (no more empire side) and plan to transfer others characters of mine if and when transfers and faction change are available
Republic fleet: http://i.imgur.com/rtDJc.jpg
Imperial fleet: http://media.r2-db.com/unapproved/4ef39b2017bbcb2e070139cb.jpg
Edit: I forgot...just speak to him to respec