It doesn't matter if you don't agree that a woman's body has secondary rights, your position makes the rights of the woman secondary to the rights of the fetus. You state that plainly when you say, "My operating principle is that no one, the woman, her boyfriend, the participating doctor, has the right to deprive that fetus of it's right to live." Since the woman's rights to her body come after the rights of the fetus to her body, by definition that means the woman's rights are secondary.
I am curious though if you feel this right to life above all other considerations extends to people after they are born. Does a human's right to life also take priority over another human's right to bodily autonomy. If a person is dieing and needs a kidney transplant, do you believe the government should be allowed to forcibly remove someone else's kidney to save the dying person's life?