Pmsl at the idea if abortion were permitted to term that all the woman who just can't be arsed being pregnant would arrive at the clinic heavily pregnant looking to terminate FFS
I know - "oh dear, I'm pregnant and I don't want to be. I know, I'll stay pregnant for the next few months for the LOLs and then I'll go and get an abortion just before I go into labour."
And then "oh no, I didn't suggest that!" 
Like shite. If you want to exclude all the "extreme cases" that make up very rare late term abortions, what are you actually talking about?
Based on the infanticide comparisons from earlier, it seems we need the 8th to stop all the evil women who love getting pregnant and then killing a viable and healthy foetus just before birth.
We don't trust people not to drink and drive, so we need to stop them from using their body to gestate foetuses they plan to kill at the last minute.
It's a real problem, and if it wasn't for the 8th Ireland would be full of heavily pregnant women, but there would be no babies.