My newborn has bumps on her face. Is this acne?

More than likely. Acne is a common newborn skin condition that resolves in approximately 2-3 weeks. Don't use any over-the-counter acne treatment.
No. They are called milia. Some call them baby pimples but this is a misnomer since they are not true pimples, they are not caused by a bacterial. They are usually small skin cysts or tiny fluid filled bumps.
Possibly. It could also be milia - tiny white bumps on newborn skin. Acne tends to develop a few weeks after birth, while milia are often present at birth. Milia are thought to be due to premature or blocked sebaceous (oil) glands. There is no need for treatment, they will disappear naturally.