If it is a provisional cast-on, somewhere down the line the pattern will tell you to remove it and put those stitches back on the needle. That will help narrow it down.
"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