Not disagreeing with you Donna, just being devil's advocate....... but what about your daughters? Would sacrificing yourself to save your unborn be fair to them?
That argument could have it's own 'where do you draw the line' question. What about our 'born' children? Is it fair to a 3yr old to sacrifice yourself so he/she could live? What's the difference between a motherless newborn and a motherless 3yr old? Is one situation fairer than the other? I'd take the bullet for my children any day. I think it's reasonable to have those same instincts/desires to protect the unborn too. I think Glamourcide has raised an interesting point... and I'd have to really think about it myself I think.

As for the OP. I draw my line at conception. A 1cm fetus is no different to a 25cm fetus in my books. I personally don't understand the argument that it's our bodies. The baby's body is not mine. Is the baby's body not also a temple? Just my opinion.. not said in judgement of those who think differently. Just simply don't agree.