If you have the time,and if you have the space,and if you have proper lighting,and if you intend on doing more grows after this one using clones from this plant you should wait longer,its best to wait until a plant is sexually mature before flowering.
When a plant reaches sexual maturity it produces much larger & fatter buds,if you can wait it out your best bet is to wait until its mature,then take a few cuttings to clone,then force flowering,you'll get extremely better yeilds & better buds.
Or you can force flower asap & get very little smoke & tiny lil buds instead of fattys.