And if everyone took pills exactly as they should and don't have medical conditions that prevent them from doing so and they never make a misstate, then the need for abortions almost goes away. Unfortunately, humans are not perfect and shit happens. Thus, the backup is the morning after pill, the abortion pill, or surgical abortion.
However in states that live in the19th century and ban abortions, a women still has a choice. They can get the hell out of these states and live in the 21st century where women have rights and they are valued higher than a fetus.
So, you expect to see a migration of women from "19th century" states to "21st century" states?