The way it's written, you'll go from 12 stitches + 2 up to 14.
It's possible that you don't have enough stitches to actually do a complete sample. What do the directions say about pattern repeat? That should tell you how many to cast on to make a complete part of the pattern. It will say pattern repeat X or X + y. I bet your pattern repeat is 12 + 2
Judging from the previous directions, I'd suggest casting on 14 stitches
row 1 - p4, k4, p6, k4, p4
row 2 - k4, p4, k6, p4, k4
row 3 - k1, p1, ct4, inc, ct4, p1, k1 you'll end up with the 16 you need.
Try it and see if it works with the rest of the rows.