Weez was right about it looking kinda sativa like.
I wouldn't set a deadline for harvesting just yet.
For the most part Indica's will stretch up to 1 1/2 ft. and Sativa's up to 3 ft. once flowering starts.
Also even though an immature plant will bud, for best results let it mature.
When it is mature the leaf structure will go from opposite to alternate.
You will notice after changing the lights to 12/12 the new growth will usually have the alternate leaf pattern.