Just so you know, I am against vaccine mandates.
And yes, there is a similarity in a way that both vaccine mandate and abortion ban tell you what to do with your body.
However, NOT getting a vaccine is passive; nothing is required from a person who chooses to not get a vaccine. This person doesn't have to go to a clinic to not get a vaccine. And the person doesn't automatically loses the right to not get a vaccine in a period of 6-12-16 weeks. No additional measures (pills/inserts/etc) to prevent the need to not get a vaccine. So, there is no way you will not be able physically to not get a vaccine, it is always on the table. Argument can be made that the consequence of not getting a vaccine might be job loss. But it will not be possible to take an option to lose a job and still get an abortion.
I'm actually not disagreeing with you but these are different