Nouveau is correct. But, was there a time frame you wanted to achieve? Is that why you're worried?
You should never doubt that the energy you put out isn't doing anything, b/c then you are sending out the energy that nothing is going to happen.
From personal experience, when I don't put a whole ton of "me" into a spell, it takes 3+ months to see results. Anytime I'm extremely passionate, its almost instant.(Different for everyone)
My main point is don't fret, in fact if you forget that you even did it, that may be more beneficial.
Often times, if you're not there to see it work someone will suddenly bring up an anecdote and you'll think, 'how strange they told me not knowing I was interested at all' and 'oh, my spell worked.' (Again, different for everyone).