Though the terms are equally important and interchangeable, to me, but just to make the point with undebatable terminology -- are fetuses humans? Please, ANYONE, explain how a living cell, whose species is homo sapiens, with its own distinct DNA, is not a human being. I know I just asked for someone to explain "how the round Earth is not round or the Earth," but sadly that seems to be needed.
It is a human, it'd be silly to say otherwise.
It's just a question of whether or not that human has a right to life.
Not even having a brain, or a brain that isn't even active, to a brain that has activity not even close to the level of activity of animals we eat daily, so I don't really consider it a loss or tragedy in any way, and do not agree with calling it a person until it is substantially older.
If you hold this view, abortion is acceptable without having to make any justification other than "I don't wish to experience pregnancy". If you don't hold this view, there is nothing that can be done to reach a compromise or in any other way bridge the gap.
I can only appeal to your sense of practicality, that it will be pretty much impossible to stop people from having abortions (it has been illegal in the past, and it has never worked) and will only result in people dying from back-alley abortions.
We've already had this discussion in the past, and civilization at the time reasoned that regardless of whether you stand on abortion on a moral basis, it need to be legal for numerous, practical, reasons.
Feel free to ask more questions though, understanding the position of someone you disagree with is crucial in these debates.