Hi Tobi,
I've seen some shops with sales in the first month, others the first sale, months later. I opened my shop Jan 19, 2012 and had my first sale April 11. Now, I'm up to 17 sales. My prices range from $2 to 35$, most of my sales have been on the low end. I have a little of everything, thus my shop's name, "Brendascrochetnsuch".
I just looked at your shop. You might want to have at least 20 items. Word is, people will pass you by if your shop isn't stocked. Have a few different pics of each item. I hope this helps.