There are many things that must change in our culture in order to end human abortion. The very first thing that must change is the dehumanization of the unborn members of our human family. Many people are unaware that the unborn are just as real and just as alive as we are today. They have forgotten that they were once a gestating child living inside of the womb of another. That they depended on others to protect and nurture them while they were growing and developing from conception to birth. Many people see the unborn as disposable, equal to a fly that can be swatted when they are annoyed by their presence.
But you are right, we also must change our Victorian Era sensibilities when it comes to young mothers. It is absolutely natural to have children as a teenager. It is only our contemporary social construct that creates an environment where they are looked down upon. Life should be celebrated and the mothers harboring that life should be honored and cherished. Mothers of all ages are heroes and they deserve every resource and affection our society can provide. No mother, regardless of her age, ever deserves to be told that she should kill her own child out of her own self interest. This must change.