I'm knitting a baby blanket. It has squares of 11 knits and 11 purls. There is a small pattern in the middle of the knitted squares. The row that starts the design has K5, yfwd, s1, k1, psso, k4. Should I end up with 11 knitted stiches after this? I have 10. So I must not be doing the psso incorrectly. Any assistance is appreciated.