Any time I use a pattern to make clothing, I feel the need to change something. I think it is an urge to 'create', rather than just follow directions. (I do admire people who have the patience for following things exactly, though!)
In this case, the pattern was for very simple cotton trousers. Well, I decided to use denim, and make them lined for extra warmth! I hope they fit the baby. I might make a pair for our baby, if I find the time...