What do you consider “regular medicine” then? Because once a woman decides she no longer consents to carrying a fetus it essentially becomes a parasite. Treating that condition is very much medicine, as much as carrying the fetus to term.
This is the bodily autonomy and consent argument in a nutshell. Once consent is withdrawn then issues of personhood, gestation period, or heartbeat are irrelevant. A couple of examples:
If you consent to sex, but then withdraw consent midway through, any attempt by the other party to continue becomes rape. Even if the other person is soooo close to climaxing, once consent is withdrawn it’s no longer sex, it’s rape.
If you consent to giving blood or donating a kidney, but then decide at the last moment you no want to go through with it, you can NOT be forced to continue. Even if the recipient will die without that blood or kidney.
If there was a medical procedure where you are hooked directly to another person to provide sustenance (say oxygenated blood, platelets, electrolytes, whatever). If you decide after the procedure has started that you don’t want to do it anymore, you don’t have to do it anymore. Even if the recipient will die.
The crux of it is, nobody else gets to use your body without your consent. No putting something into your body, no taking something out. When SCOTUS says nobody has a right to an abortion, they’re giving fetuses the right to use someone else’s body without their consent. They effectively have MORE rights than other people.
That’s very shaky ground when in most other legal precedents unborn babies do not have the same rights. So if fetuses can be granted some special rights and not be granted others, with no consistency, it’s no small stretch that forced abortions would be any more abhorrent than forced pregnancy.
Forcing someone to remain pregnant against their will is not regular medicine. Having to worry about possible legal implications of a natural miscarriage is not regular medicine. Fearing that you may have to sacrifice your own life against your will to support the life of another is not regular medicine.