errr because religious grounds are nothing if God does not exist. You can't utlise "abortion is wrong because god says so" as an effective argument unless God exists.

Taking your orther arguments from the link (bold)
1. First of all, the choices are abstinence, pills, condoms, shots, patches, and even a "morning after pill" (assuming it prevents fertilization). My grandmother had 9 kids and no choices. It's 2004, not 1904. People need to be responsible and accountable.
This is not an argument against abortion it is merely a statemnet of the alternatives.

2. I've heard many women regret having an abortion. Certainly many women regret getting pregnant. I've never personally heard of a woman regretting having her baby (even my grandmother).
So what? I have heard of many women who do not regret abortions at all. We regret many things in life this does not mean they should be banned. Contrary to your experiance I have heard of many women who do regret having children. Just think of all those kids that end up in care!! Or are abandoned in phone boxes. Or are abused or killed by their parents.

3. Abortion cheapens life. Regardless of your religious beliefs, you can see there is not a great outcry or shock when a newborn is murdered. A crying, breathing baby is certainly a person. That cannot be debated. Too much of the time, it's looked upon as just a late term abortion.
Only if you equate a fetus with a baby. They are not the same things at all. The fallicy of this argument is that you are comparing two differnt objects with different properties one the one hand a baby that is sentient, concious and self aware and on the other hand a fetus which displays none of these proerties. Please see my argument above for more details.


4. What if it's wrong? What if conception is the "magic moment"?
What do you mean by magic momment? If you mean when life is created I would say so what? Life is not sacred per se (see my previous post). If you mean conception is when the fetus becomes conciously aware and sentient then I would say you are talking nonsense. IF, however, science does demostrate that these special properties are present at an earlier stage of pregnacy than is currently thought THEN I would revise my current stance on the time limit on abortion. It is only when those special properties of conciousness and self awareness are present that the fetus moves up the ethical scale.