You need to get thyself to the nearest Destination Maternity store. They carry the leggings for a very good price...from like 12 bucks to 20, depending on the style and length. Or, check online.
I looked in Target the other day for clothes, and their selection SUCKED. I think I'll stick to Destination, and check out a few other stores...
I'll spend what I need to on clothes - I just hate cheap materials.