I recall reading a very insightful post on FR a few months ago (maybe longer ago than that) about various religions and their stances on abortion. At least according to that source, in Judaism a fetus is not considered a life. Of course, it could be different for an Orthodox like Lieberman, so who knows.
You are incorrect regarding Judaism and the fetus. But would you like for me to post data from aish.com for your edification? Or would you like to go and read the truth for your own edification?
Here's an interesting pro-life Jewish perspective.It has what most liberal-pro-choice Jewish statements lack: citations from the Torah and the Talmud:
http://www.jewsforlife.org/Judaism-pro-life-message.cfm