The question is underspecified. Why do you want to know if free will exists? What will you do differently if it does exist vs if it does not exist?
This is similar to questions like, "is water wet?" You can generate endless debate on the topic, but it's all intellectual masturbation until you are genuinely looking for the answer to a specific question.
Disagree. No one was hurt here. The fact that the baby could have lived means nothing. The mothers body is her own, and the choice was hers and only hers.