You've been knitting the bottom flat to this point, right? Don't bind off. Just start picking up the stitches all around the bottom. If you bind off, you'll just have to pick up the stitches that are on your needle now.
"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