Help with debbie bliss baby knits for beginners

Maybe. You can checkonline and see if there are any corrections for this pattern.
Why don’t you count the number of sleeve sts you have before the sleeve decrease and make sure that number is the same as the pattern calls for [60(66,74) depending on the size you’re making]? Also, check the length of the front and back from the armhole decrease to make sure that length is what the pattern is calling for.