For the first time ever on my knitting career of 30+ years I've actually knitted a tension square as I'm fed up of stuff not being the right measurements. But what does it mean!!! I've done more than the recommended no of rows/stitches and it's too small! I'm nowhere near the 10 x 10 cm it should be. Does this mean I need to go up a size in needles? (Currently using 3 mm needles).
TiA