It could be the pattern is written for a knitter that's looser or tighter than you. You could make a swatch with a needle size that gives you the fabric you like, check your gauge and see if the size would match up with a different size of the pattern.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry