The idea that life begins at conception is religious not scientific.

I'm not anti-abortion, but there is a tendency to play ridiculous linguistic games around all of this.

There's no scientific reason for pro-abortion, atheist, secular, progressive, liberal people like myself to pretend that life doesn't begin at conception, regardless of whether that life is viable on its own outside of the womb yet.

Bacteria is a simple life form.

Let's just be real about all of this.

Now the question of whether all life, or life at various stages of development has rights, where those rights come from, and whether those rights can ever be interfered with (at any age, in any demographic) is an entirely separate issue. Don't conflate that with biology and when life begins, that's a pointless, disingenuous diversion/distraction.