Re: 2 questions. coffee and vitamins
You don't NEED to take a vitamin- after all, women were breastfeeding for millennia before vitamin supplements were invented! You will produce good milk whether you take a vitamin or not. But taking a vitamin is still a good idea- it cannot hurt and may help. In particular, breastfeeding can be pretty draining for you, and a daily vitamin might help.
Coffee is fine for your baby. Just don't drink excessive amounts. A cup in the morning or a few cups over the course of the day is fine.
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!"