Bad analogy. The father would be charged with assault on the kid and the woman in your scenario. Also, no one reasonable thinks a five year old and a fetus are the same, which is why these laws are fucking ridiculous.
The discussion here is founded upon the assumption that a fetus is a person. The OP’s argument is that if that’s true, then self defense laws apply and the woman should be able to defend herself from the fetus by whatever means necessary to prevent harm. But the fetus can’t choose to do anything, so killing it in self defense would only make sense if you could also kill the five year old who was thrown at its mother.
Bad analogy. The father would be charged with assault on the kid and the woman in your scenario. Also, no one reasonable thinks a five year old and a fetus are the same, which is why these laws are fucking ridiculous.
The discussion here is founded upon the assumption that a fetus is a person. The OP’s argument is that if that’s true, then self defense laws apply and the woman should be able to defend herself from the fetus by whatever means necessary to prevent harm. But the fetus can’t choose to do anything, so killing it in self defense would only make sense if you could also kill the five year old who was thrown at its mother.