Where did I go wrong?

[haleysmommy]

I casted on 45 stitches and did 8 rows of ribbing. From there I alternated K and P, increasing one on rows 11 and 14. Pattern reads to repeat 9-14 until you have 58 stitches. Where I should have had 50 I already had 58! Where did I go wrong? Is it ok to keep going? (Gosh I hope so; I've done 40 rows!)

I'm making pants for my daughter (6m). Is this going to matter when I seam the other half of the pants to this one?

I'm a new knitter, can you tell?