I've knit the waist and the body of a pair of pants. I split for the legs and have finished one leg. I'm ready to do the other leg so my pattern says I need to use 12" circs for the legs instead of the 16" circs I've been using for the body. So, I am ready to start the legs and I have my 12" circs and I start knitting onto them (my work is currently on the 16" circs).
So I knit the entire round and now have all stitches on the 12" circs only my round is not joined. So I've added an extra row without joining the round.
What did I do wrong? How do I fix it? I'm trying to remember how I transitioned the stitches for the first leg onto the 16" circs but I can't remember.