Just leave it for a week or so to let more growth, IMO I let mine grow a foot or two before I take any cuttings off it, It's a bit small to take a cutting that would root being so small.
But it looks good so you shouldn't have to wait to long before you get a clone from her.
Keep up the good work it will pay off in the long run, patients is a healthy plant.
Good luck and Welcome to RIU.