Um, no, actually, he actually pretty much said exactly that when he was running for Governor.
I'm paraphrasing, but I believe the statement that got the most press was, "Personally, I'm pro-life, but I recognize I'm in the minority in our great state, and as Governor, I will not change the abortion laws and will protect a women's right to chose."
Is it a bit of a dodge? Sure, but it makes it pretty clear where he is coming from. Besides that, he wasn't even so much taking a stand as he was conceding the truth. He wasn't going to be able to change any abortion laws as Governor even if he wanted to with the legislature as overwhelmingly D as it is. What's more, actions speak louder then words, and he's vetoed several pieces of legislation favored by the pro-choice crowd, as well as been on the forfront in the fight against gay marriage.
Um, great. Romney is personally pro-life, along with Mario Cuomo, John F'n "Life begins at conception" Kerry, Bill Clinton, and every other pandering liberal scumbag out there.
It means absolutely nothing. Mitt Romney cannot get pregnant. Mitt Romney will never have an abortion. Who cares if Mitt is personally pro-life, it affects no one.
What DOES matter is that he has repeatedly endorsed Roe v Wade and the "right" to abortion.