Why is "my body my choice" an excuse for not getting the COVID vaccine, but not a reason to elect to have an abortion?

Trump supporters, Sidney Powell among them, are shouting “My Body My Choice” and using that as an excuse not to be vaccinated.

But the same right wing religious right that says that refuse to give women that same right (My Body My Choice) when it is raised in the context of abortion.

How do they square the two?

Note: this is NOT a discussion on abortion. It is a political discussion.