How do you crochet an extra stitch?
To increase one stitch in single, half double, double or treble crochet, simply work two stitches in one stitch. For example, if you are working in single crochet and you need to increase one stitch, you would work one single crochet in the next stitch; then you would work another single crochet in the same stitch.
What counts as a stitch in crochet?
To count the rows: look at the sides of the fabric and count the single crochet stitches from the bottom to the top. To count the stitches in your swatch, look at the single crochets along the row from left to right. Keep in mind that the turning chain (that you will find on the edge of the row) counts as a stitch.