You seem to have misread me, while also not responding to any of my comment beyond that.
I didn't say you thought no abortion should be legal.
You said you feel that: "women ( as biological females) have a very particular role in the wider context of human society", which seems prescriptivist, and a little disturbing given you then go on to say that women should be uniquely limited in terms of their bodily autonomy, in a way no other human is.
And also that "there needs to be limits and boundaries" and "there does need to be limits to the idea that you can do anything you like with what society agrees is precious and important."
You said that past a certain point, abortion shouldn't be allowed as it's the taking of a human life. How can you make exceptions to that for rape, incest, age, etc, and still be morally consistent? And if you're not being morally consistent, why are you making an argument to take away women's bodily autonomy?
As for your last paragraph...it's not diminished responsibility at all, it's that pregnant women and girls are being held to a much higher standard than anyone else in terms of responsibility. No man is forced to donate blood, even if it would save someone's life, so why should a pregnant woman be held to different standards?