WEST DES MOINES, IOWA — It may seem a technical point to some, but to those focused on abortion as an issue, it isn’t.

Breaking from groups that believe human life begins at the moment an egg is fertilized — also the position of the Catholic Church, of which he is a member — former House Speaker Newt Gingrich told ABC News he believes life begins at implantation.

But he expressed confidence that he can win the vote of anti-abortion activists despite this difference.

TAPPER: Abortion is a big issue here in Iowa among conservative Republican voters and Rick Santorum has said you are inconsistent. The big argument here is that you have supported in the past embryonic stem cell research and you made a comment about how these fertilized eggs, these embryos are not yet “pre-human” because they have not been implanted. This has upset conservatives in this state who worry you don’t see these fertilized eggs as human life. When do you think human life begins?

GINGRICH: Well, I think the question of being implanted is a very big question. My friends who have ideological positions that sound good don’t then follow through the logic of: ‘So how many additional potential lives are they talking about? What are they going to do as a practical matter to make this real?’

I think that if you take a position when a woman has fertilized egg and that’s been successfully implanted that now you’re dealing with life. because otherwise you’re going to open up an extraordinary range of very difficult questions

TAPPER: So implantation is the moment for you.

GINGRICH: Implantation and successful implantation. In addition I would say that I’ve never been for embryonic stem cell research per se. I have been for, there are a lot of different ways to get embryonic stem cells. I think if you can get embryonic stem cells for example from placental blood if you can get it in ways that do not involve the loss of a life that’s a perfectly legitimate avenue of approach.

What I reject is the idea that we’re going to take one life for the purpose of doing research for other purposes and I think that crosses a threshold of de-humanizing us that’s very very dangerous.

-Jake Tapper