You made the choice (outside of cases of rape) to take an action that could potentially lead you to having to give up your autonomy to another living being. Even if a condom breaks or other potential actions you take just don't work, YOU made a decision that could lead you to being in that position.
Outside of rape, you are responsible for YOUR actions.
NOTE : I'm pro-choice and this argument boils my blood, but it is what they would say.
The counter argument for that would be one of the examples I gave.
You cannot force a mother to donate blood to save her own child. Even if it were her fault (eg. She was driving recklessly and her child incurred massive blood loss)
In this example the mother willingly drove recklessly despite her child in the car. It is her fault her child will die without blood transfusion but she may still legally refuse to donate blood. Her bodily autonomy Trump's her child's need for bodily resources.
sure you can't force her
you can still consider her a shit person for it ---