Anti-abortionists don't believe that life begins at conception.

[Husar]

I have already posted about how the fetus increases in value as time passes, Husar. You butted in to a direct reply to Fragony's usual black and white view on life, where he apparently thinks that any pregnancy is considered just as valuable, and that an abortion after 4 weeks is unacceptable.

I assumed that when he mentioned a beating heart etc., he meant a relatively advanced pregnancy, but maybe I was wrong there.
I'm not an expert on the subject and have never been pregnant myself.