I think there's a simple reason that no one's attempted an abortion blog before, and it's not so much that it's so shameful to get an abortion. It's because most abortions are about getting from point A (shitshitshitshitshitshitshit) to point B (thank god I'm not pregnant anymore) as quickly as possible. Blogs only work for processes that are dragged out for months, as opposed to days and weeks, at a time.
That said, the blogger bags on Planned Parenthood a lot. I'm cautiously waiting to see if it's an anti-choicer writing a fictional blog about a woman who gloriously changes her mind. I hope it's not, but I have a hoax feeling about this.