No it wasn't. There were only a few states in the union where you couldn't get one for "one reason or another". In the others, there were restrictions more in name than fact. In Pennsylvania it was 'illegal' unless necessary to 'protect the health' of the Mother, so every woman who wanted an abortion just said it would mess up her mental health to have a baby and some Doc would sign the papers. The old state laws were so full of loopholes you could drive an 18 wheeler through them.
Same with divorce. Up till the 70s, you couldn't get a divorce in New York unless there was infidelity. So people who really wanted a divorce would just swear there was even if there wasn't.
Stopping abortion is more about changing minds than changing laws.
Now, I can agree that changing minds is more important than changing laws. One thing that should change in the minds of Americans is the bizarre idea that the Supremes can make law by a ruling. The minds of state legislators should change from the prostration before the Supreme Court to a standing on Constitutional law. Three or four states simply issuing laws that there will be no abortion on demand within their borders would do the trick. The feds would have no legal leg to stand on by demanding that their law is supreme because they have no law. All they have is legal precedent which can be overturned by the current Supreme Court.