I took one class that covered all of that and then one cpr class. i was about 7 months but you can do it any time. Also, it really important to know how to properly put a carseat in, sometimes they have classes for that too.
Good idea! I didn't think of those classes =[ I don't want to start too early and forget but I also don't want to start too late and not get to attend all the classes I wanted to.
To my knowledge you can start anytime. Don't forgetto sign up for children CPR and the Heimlich Maneuver. Very important as well