In the time since Roe v Wade, scientists have learned a lot more about the ability of the child in the womb to feel pain. At the time of Roe, doctors thought that newborn children could not feel pain, and the only anesthetic they received was adhesive tape, to keep them still.
Now, however, we have much more evidence about how these young bodies respond to pain, and Nebraska has even passed a law saying that once the child can feel pain, the state can protect that child from being aborted. Hence abortions there have been banned after 20 weeks of pregnancy.
The National Right to Life Committee provides model legislation for other states that want to adopt it. Abortion is always wrong, but we should use every measure that will help reduce it.