In principle, yes. Those clusters of cell would develop into a human life if everything goes to plan, and destroying them would be stopping a human from coming into being.
However, at that point it's still, technically, a cluster of cells. A blueprint. It's not a person but will develop into one. That's the distinction.
When it goes from being a cluster of cells to a person is the point of contention. Is it when neural activity first starts in its few brain cells? When its heart starts beating? When it has a chance of surviving on its own? When it has most of its organs in place, even if they're not fully-formed?
Either way, even if it's viewed at just destroying a clump of cells or killing a person, the result is the same: it stops a person from coming into existence. It should never be taken lightly, regardless of why and if you're pro-life or pro-choice, and no matter what the parents' choices end up being (keep, abort, adopt., et cetera).
It's a terrible, serious choice.
That's the gravity of the situation people tend to overlook, ignore, or just don't understand -- especially dumb women who can't or won't keep their legs closed without using a fucking condom or the Pill, and thinking it's just another form of birth-control on those levels.
There's no "would", as far as I'm concerned. It is a human life. Destroying it kills a human life. That is a different result, a much more evil result, than just stopping a person from "coming into existence". You and I are "cluster of cells", after all. That's not somehow mutually exclusive with us being human lives.