Okay this argument is hypocritical AF. First, your two month old niece isn’t about to risk killing you and then die. Second, if she was going to die without you giving her an organ transplant, do you think it’s okay for the government to force you to do that surgery against your will? What about if it wasn’t your niece? What if you’re 10?
You don’t respect the autonomy of a woman if you believe in forcing decisions on them about their body, hard stop. There is no wiggle room for you to argue that the fetus matters, because you wouldn’t apply that to any other situation in life. Stop acting like it’s the moral choice when it’s literally forcing woman to risk their lives against their will. Those women are already alive, why don’t their rights and lives matter to you?