You can't be pro choice when it comes to specific circumstances and not be pro choice in certain situations.
You have set up the link between the two and you have created your own definition of "pro choice". We don't all have to sign up to your link or your definition. (I don't)
My definition is, "advocating the legal right of a woman to choose whether or not she will have an abortion."
I don't see that much overlap with that and my opinion on whether unvaccinated people should be allowed to potentially spread infection to vulnerable people (especially those in jobs that have traditionally had other mandatory vaccines).