Sorry that does not add up. The concept that life begins at the moment of conception is a religious one. A cluster of cells is not a human being and is not capable of life outside the womb so to assert otherwise is either based on a religious viewpoint about creation and/or an ignorance of scientific fact. Alternatively you may of course simply not believe that women have the right to control their own fertility.
The stance of anti-abortionists is also IMO deeply hypocritical for two reasons. The first is that the anti-choice lobby are usually also against effective sex education in schools and elsewhere which would reduce the number of unwanted pregnancies and secondly that abortions were carried out before 1967 it was just that the wealthy could afford safe ones and usually escaped prosecution while the rest of the country faced risky back street operations and the possibility of jail.
Good reasoned response. My point is that it is clearly going to be a life. It's totally different to saying wasting a sperm is murder because even when an egg is fertilised loads of sperm die in the attempt, so by that logic no one should ever even try.
It's the issue of whether people should have the right to stop the foetus becoming a baby. Nothing religious about it. I wouldn't force my views onto anyone for a minute.