And why viability? What about when the fetus can detect pain, or has a heart beat?
The limit of viability is around 24 weeks. The nervous system developments necessary for feeling pain do not occur until the 26th week.
There are people living without a heartbeat through Ventricular Assist Devices, and there are hearts beating away inside brain dead people. A heart beat is a poor indicator of a viable life.
Women's rights to medical procedures trump your wants over her body.
QFT.