“What would be the difference between that and killing it in the womb i.e. an abortion 61-minutes earlier?”
What’s the difference between shooting someone before they take out their gun and point it at you, shooting someone an instant before they pull the trigger, or shooting them after they dropped their gun and are running away?
Timing is sometimes everything.
The first and last examples would both be murder but If the baby had his finger on the trigger and was ready to kill you, you would be in your rights to take him out.