or use a clear white black back ground, that helps, how many meg is the camera?. mines 5 and its crap, getting a 10meg for xmas.i love taking pics, but cannot do good close ups on mine either, but try the white/black background it really helps the camera focus on the part your wanting to take a pic of. hope this helps.
5 days is a little early. has your plant got any pistols growing with little whitey hairs growing out of it, this can happen when your vegging, and its a indercation that a plant would be female. and male plants are taller and better looking, if you know what i mean, after a while you will be able to just tell. keep posting pics every day if your not sure.