In its natural condition, it will be born, if there isn't an intervention or an anomaly.
Not accurate. Half of all fertilized eggs never implant.
Where do you draw the line?
Unfortunately, you are now quoting things I suspect you do not understand, since they do not support your position. Electrical activity is neither a brain nor consciousness. Nor is a neural tube. Nor are connections between nerves and muscles. Nor are spinal reflexes - brain dead patients can still hiccup, stretch, and move. The cortex, which is responsible for human consciousness, does not develop until 24-26 weeks. 24-26 weeks is also the limit of viability, when a fetus being delivered has a chance of surviving (albeit a low chance, and likely with significant physical and mental disabilities). That's where I draw the line.