Re: Using a Dummy?
It's generally recommended that pacifier introduction be delayed until at least 3-4 weeks, when most babies have mastered the art of breastfeeding and mom's milk supply is well-established. So I would wait a week or two, just to be on the safe side.
Don't worry about spit-up unless the baby seems to be uncomfortable when it's happening. Spit-up that is not accompanied by evidence of pain or poor growth is a laundry problem, not a health problem, and it's a normal part of being a baby. The sphincters that hold stomach contents down where they belong are weak in a young baby, so spit-up can happen even when baby is getting an average or low amount of milk when nursing.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"