No, see this is why I'm irritated by the argument. By implying that there is a "perfect," you concede far too much to the fascists. The best argument possible is this is a private decision between a woman and her doctor. Anyone who disagrees is an asshole, and should be made to feel like one.
If there was a law that we stone women who commit adultery to death, you wouldn't argue against it by pointing out the child bride of a coma patient fell in love with her husband's caregiver, and they found comfort in each others' arms. No, the law is bad because it is barbaric, evil, and misogynistic.
By trying to argue that she did everything "responsible" to avoid a pregnancy, you leave the door open for the fascist to say "ah-ha, but she didn't do everything she could, because she got pregnant." There's no compromise to be had with fascism.