And, not to beat a dead horse, but if you do not witness the baby stop breathing, you are two give the breaths first, then pump. If you do witness it, the opposite: pump, then breath. It’s all timing. This is why CPR training, as you advise, is a good idea.

Just an FYI, CPR as soon as you know baby isn’t breathing. Have someone else call 911, or if you’re alone, CPR first, at least for a bit, then call 911. You need to get air in there (if you can) as soon as possible. 911 can’t do CPR for you (although if you are not trained can of course guide you through it) and…