Yes. Society hates teen pregnancy. Some societies will carve out an exception for married teens, which is a whole other can of worms. This is not a change in norms, it's the victory of the norms. People have been told not to have children until they are ready, and finally compliance with that is pretty high.
There were even worse alternatives, like the mass grave at Tuam or the Victorian practice of "baby farming". https://www.bbc.com/news/extra/4ko2zsk2tb/Tuam
The short way to get a baby boom is to make it OK to be a less than perfect parent.